REPORT Audit of H2 2020 Performance Reports

REPORT

Audit of H2 2020 Performance Reports Iluka Resources Limited, Douglas Mine Pit 23 by-product disposal site

Submitted to:

Stuart Alexander Iluka Resources Limited

Locked Bag 1001

Hamilton Vic 3000

Submitted by:

Golder Associates Pty Ltd

Building 7, Botanicca Corporate Park 570 – 588 Swan Street Richmond, Victoria 3121

Australia

+61 3 8862 3500

19121052-011-R-Rev0

September 2021

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Distribution List

Electronic Copy:

1x Iluka resources

1x Golder Associates

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Table of Contents

1.0 INTRODUCTION ......................................................................................................................................... 1

2.0 PLANNING PERMIT REQUIREMENTS ..................................................................................................... 1

2.1 Methodology ..................................................................................................................................... 1

2.2 Incoming Waste Monitoring Plan ..................................................................................................... 2

2.3 Environmental Management Plan .................................................................................................... 2

2.4 Rehabilitation and Vegetation Management Plan ............................................................................ 3

3.0 ENVIRONMENTAL AUDITOR .................................................................................................................... 3

4.0 SITE LOCATION ......................................................................................................................................... 4

5.0 INCOMING WASTE MONITORING PLAN PERFORMANCE REPORT ................................................... 5

6.0 ENVIRONMENTAL MANAGEMENT PLAN AND REHABILITATION PERFORMANCE REPORT ......... 5

7.0 REHABILITATION AND VEGETATION MANAGEMENT PLAN ............................................................... 6

8.0 OTHER PREVIOUS AUDIT FINDINGS ...................................................................................................... 6

9.0 REFERENCES .......................................................................................................................................... 11

10.0 IMPORTANT INFORMATION ................................................................................................................... 12

11.0 CLOSING .................................................................................................................................................. 12

TABLES

Table 1: Response to previous audit recommendations ...................................................................................... 7

Table 2: IWMP Performance Report Audit ........................................................................................................... 1

Table 3: EMP Performance Report Audit ............................................................................................................. 1

TABLES (attached)

Table A: Duplicate and blank analytical results – November 2020

FIGURES

Figure 1: Site Location Plan.................................................................................................................................. 5

APPENDICES

APPENDIX A IWMP Performance Report Audit

APPENDIX B EMP & RVMP Performance Report Audit

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APPENDIX C Iluka IWMP Performance Report H2 2020

APPENDIX D Iluka EMP & IWMP Performance Report H2 2020

APPENDIX E Important Information

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1.0 INTRODUCTION

Golder Associates Pty Ltd (Golder) was engaged by Iluka Resources Limited (Iluka) to undertake an

independent audit of the Performance Reports for the Pit 23 By-products Disposal Facility, located in the

municipality of the Horsham Rural City in the Kanagulk area (the site). The independent audit (audit) is a

requirement of Planning Permit 15-105 (the planning permit), issued by Horsham Rural City Council (Council).

The Performance Reports, prepared by Iluka, provide a summary of the waste acceptance, monitoring and

management undertaken at the site during the half year ended 31 December 2020. The two Performance

Reports prepared by Iluka for H2 2020 are as follows:

Environmental Management Plan and Rehabilitation Performance Report (EMP Performance

Report) H2 2020; and,

Incoming Waste Monitoring Plan Performance Report (IWMP Performance Report) H2 2020.

The EMP Performance Report is audited against the criteria listed in Section 12.2 and 13.2 of Iluka’s Pit 23

Environmental Management Plan Rev 4 (EMP). Similarly, the IWMP Performance Report is audited against

the criteria listed in Section 6 of Iluka’s Pit 23 Incoming Waste Monitoring Plan Rev 4 (IWMP).

The H2 2020 Performance Reports are provided in APPENDIX C (IWMP)and APPENDIX D (EMP & RVMP).

The Performance Reports cover the period from 1 July 2020 to 31 December 2020.

2.0 PLANNING PERMIT REQUIREMENTS

Regarding the audit of the IWMP and EMP Performance Reports, the relevant conditions of the planning

permit include:

14 (e): annual auditing of records to verify compliance with the requirements of the Incoming Waste

Monitoring Plan (IWMP).

20: The annual performance report must be reviewed by an independent suitably qualified person with

expertise in risk management plans in the context of mines and quarries, and is an environmental auditor

appointed under the EP Act 1970.

31: The permit holder must submit an annual performance statement (within the wider EMP Annual

Report).

42: The permit holder must prepare an EMP and Rehabilitation performance review report covering its

compliance requirements under the various sub-components of the EMP and R&VMP [Rehabilitation and

Vegetation Management Plan] for provision to a suitably qualified environmental auditor as agreed by the

Responsible Authority annually or less frequently as agreed to in writing, by the Responsible Authority.

43: The environmental auditor must review the EMP and Rehabilitation performance review report and

provide conclusions on the report’s content against its key sub-components, and recommendations for

any required amendments to the plans (‘auditor’s review’).

2.1 Methodology

The Performance Reports were audited against the relevant requirements of Section 6 of the IWMP and

Section 12.2 and 13.2 of the EMP. Additional documentation was sought from Iluka as needed to provide

evidence of compliance with relevant sections of the IWMP and EMP.

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Due to the limited activities occurring at the site, a site inspection was not conducted as part of the audit.

Assessment was therefore limited to desktop review of the Performance Reports and supporting

documentation.

The recommendations of the previous Performance Reports (AECOM, 2017; Golder, 2018; Golder, 2019;

Golder, 2020) were also considered and a review of Iluka’s response to these recommendations is provided in

Section 8.0.

The audit of the IWMP Performance Report, EMP Performance Report and actions undertaken regarding

previous audit report recommendations assessed compliance according to:

‘Compliant’. The information indicated that the relevant requirement of the planning permit or plan had

been met.

‘Not Compliant’. The information indicated that the relevant requirement of the planning permit or plan

had not been met.

‘Not Applicable’. The relevant requirement was not applicable due to the operational status of the plant or

the Auditor was unable to determine compliance due to the requirement being outside the scope of the

audit.

2.2 Incoming Waste Monitoring Plan

The IWMP has been prepared to satisfy the requirements of Condition 14 of the Planning permit, namely:

14. Within 90 days of the commencement of this permit operating, an Incoming Waste Monitoring Plan

(IWMP) must be submitted to the satisfaction of the responsible authority and the Department of Health

and Human Services for approval by the responsible authority. Three copies of the IWMP must be

submitted to the responsible authority. When approved by the responsible authority the IWMP will be

endorsed and it will then form part of this permit. The IWMP must provide for:

a. A monitoring and reporting system for ensuring that materials disposed of to Pit 23 are limited to

those permitted under the conditions of this permit;

b. Recording of the origin, per load weight and radioactive properties of each incoming load;

c. Monitoring to ensure all vehicles transporting waste have fully secured and contained loads and that

all waste loads have been transported in compliance with licensed requirements under the Radiation

Act 2005;

d. Records of any transport incidents or spills and remedial actions taken in the event of such incidents;

and

e. Annual auditing of records to verify compliance with the requirements of the IWMP.

This audit has reviewed the IWMP Performance Report against relevant planning permit criteria, and Section

6 of the IWMP.

2.3 Environmental Management Plan

The EMP has been prepared by Iluka to provide a framework for the management and monitoring of disposal

operations at Pit 23. The EMP outlines:

The operational, environmental and legal context for the permitted development;

The operational methods to be used;

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Environmental issues that could compromise environmental performance if not managed appropriately;

and,

The monitoring program to be used for assessing the environmental performance and impact of Pit 23.

This audit has reviewed the EMP Performance Report against relevant planning permit criteria, and Section

12.2 and 13.2 of the EMP.

Previous Auditor recommendations to review the EMP have been considered by development of a revised

EMP (Revision 5.1). The Auditor’s review of the EMP Revision 5.1 has been provided separately (Golder,

2020c). We understand that EMP Revision 5.1 will be applied for monitoring and assessment from 2021

onwards. The H2 2020 monitoring and assessment of results were conducted under the Revision 4 EMP

(Iluka, 2017) and this Audit compares the performance reports to the requirements of the Revision 4 EMP.

2.4 Rehabilitation and Vegetation Management Plan

The Rehabilitation and Vegetation Management Plan 2017 (RVMP) has been prepared by Iluka to provide a

detailed management framework for rehabilitation of Pit 23. The RVMP outlines:

The end use and rehabilitation objectives for the subject land;

The methods to be used for rehabilitation and revegetation;

Key issues that may compromise rehabilitation outcomes; and,

Completion criteria and further monitoring post completion.

In relation to the audit of the Rehabilitation and Vegetation Management Plan 2017, the relevant planning

permit requirements are:

42: The permit holder must prepare an EMP and Rehabilitation performance review report covering its

compliance requirements under the various sub-components of the EMP and RVMP for provision to a

suitably qualified environmental auditor as agreed by the Responsible Authority annually or less

frequently as agreed to in writing, by the Responsible Authority.

43: The environmental auditor must review the EMP and Rehabilitation performance review report and

provide conclusions on the report’s content against its key sub-components, and recommendations for

any required amendments to the plans (‘auditor’s review’).

As of the writing of this audit, Pit 23 was still accepting material and as such, rehabilitation or revegetation has

not yet been undertaken by Iluka. There are therefore no findings regarding the RVMP.

3.0 ENVIRONMENTAL AUDITOR

This audit review was undertaken by Bruce Dawson who is appointed as an Environmental Auditor (Industrial

Facilities) under the Environment Protection Act 1970.

Bruce has over 30 years’ experience in environmental management issues, encompassing industrial planning

and assessment, auditing and policy development. Bruce joined Golder in 2010 as a Principal Environmental

Consultant leading the development of performance assurance and industry sustainability services in the

Melbourne office.

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Bruce has extensive experience in assessing environmental performance and impact and associated

strategies for effective management of statutory obligations in waste management, industrial operations, land

development and infrastructure development.

Bruce was previously employed with the Environment Protection Authority Victoria for 24 years. He was part

of EPA’s executive leadership team for 8 years, providing a key role in leading operational and policy program

areas and lead implementation of EPA’s environmental audit program.

Bruce undertakes auditing and assessment of landfill design and construction and risks associated with landfill

gas migration. Bruce has extensive experience in development of environmental management plans and

environmental policy to reduce environmental impact and compliance risks.

Bruce was supported by the following Golder personnel:

Stephen Makin, Senior Hydrogeologist,

Coen Romalis, Environmental Scientist.

4.0 SITE LOCATION

The Douglas Mineral Sands Mine (shown in Figure 1) is located in the municipality of the Horsham Rural City

in the Kanagulk area. Iluka produces a number of by-products from its heavy mineral processing operation at

its mineral separation plant (MSP) in Hamilton. The by-products produced from this processing are

transported by truck from the Hamilton site to the Douglas Mine Site, where it is then disposed of in a mining

void known as Pit 23. Pit 23 is shown in Figure 1. The IWMP and EMP apply management controls

specifically to Pit 23 and its associated operations.

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Figure 1: Site Location Plan

5.0 INCOMING WASTE MONITORING PLAN PERFORMANCE REPORT

The Auditor’s review of the IWMP Performance Report is attached as APPENDIX C. The review found that

the Performance Report is in accordance with Section 6 of the IWMP.

6.0 ENVIRONMENTAL MANAGEMENT PLAN AND REHABILITATION PERFORMANCE REPORT

The Auditor’s review of the EMP Performance Report is attached as APPENDIX D. The review found that the

Performance Report is generally in accordance with Section 12.2 and 13.2 of the EMP. The Auditor makes the

following recommendations:

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Analysis results for one duplicate groundwater sample and one field blank sample were supplied (from

November 2020), along with laboratory reports for routine sampling. QAQC data quality validation

should be included in the annual performance report.

The EMP requires Iluka to construct groundwater elevation contours for each monthly groundwater

gauging round. Although groundwater hydrographs were reported for the monitoring period, which

indicate generally consistent water levels, only contours from the previous reporting period were

presented (June 2020). At least one interpretation from the reporting period should be supplied as part

of the Performance Report.

7.0 REHABILITATION AND VEGETATION MANAGEMENT PLAN

The RVMP reporting requirements are listed in Section 2.4 of this report. Iluka’s Performance Report for the

RVMP was included in the EMP Performance Report.

Due to the current and continued operation of Pit 23, no actions required by the RVMP were undertaken

during the H2 2020 reporting period.

8.0 OTHER PREVIOUS AUDIT FINDINGS

The audit of 2017 Mineral Sands By-product disposal reports (AECOM, 2017) was the first audit of the IWMP

and EMP undertaken. Iluka has responded to a number of these recommendations in the 2018 and 2019

reporting periods. Outstanding recommendations from these reports are provided below.

Additionally, the recommendations from the audit of the 2018, H1 2019, H2 2019 and H1 2020 reporting

periods by Golder (19121052-001-R, Golder, 2018; 19121052-003-R, Golder, 2019; 19121052-006-R, Golder,

2020a, 19121052-009-R, Golder, 2020b), are presented with Iluka’s response below.

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Table 1: Response to previous audit recommendations

Previous Audit Recommendation Observation Action Completed in H2 2020? Recommendations

IWMP Performance Report

Golder, 2018:

Due to the infrequent disposal of

material Iluka should consider

revising the IWMP if it continues to be

impracticable to calculate a weekly

average for radionuclide properties.

The IWMP has been revised, with

Revision 5 dated 29 October 2019.

This was reviewed by the Auditor

(Golder, 2020c) and was considered

to satisfy this recommendation.

Completed -

Golder 2018:

As the IWMP will have been in

operation for two years as at 17 July

2019, a review should be undertaken

during the next reporting period. Iluka

has confirmed that a review has

commenced.

The IWMP has been revised, with

Revision 5 dated 29 October 2019.




Completed The IWMP now requires review after

a minimum of 3 years, so the next

review would be due by the end of

2023, considering Revision 5 came

into effect at the end of 2020.

EMP and RVMP Performance Report:

Golder 2018:

Future interpretations of results from

GW04 should consider whether this

well is located down-hydraulic

gradient from Pit 23 (i.e. is it on the

predicted flow path?).

Groundwater flow contours and

numerical model flow paths presented

in H1 2019 report indicate that GW04

is not directly down-gradient from Pit

23.

Completed Iluka report installation of an

additional bore between GW04 and

BW36A in October 2020. This bore

has been named GW04A and is

indicated to lie within the modelled

groundwater flow paths from Pit 23.

GW04A was included in the revised

EMP (Revision 5.1) as a down-

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gradient bore, with GW04 retained as

a cross-gradient bore.

Golder 2018:

An additional well between BW36 and

GW04 is recommended to be

installed, considering that GW04 may

not be located down-hydraulic

gradient from Pit 23.

BW36 (blocked) was

decommissioned and replaced with a

new well BW36A in a similar location.

The spacing between BW36A and

GW04 of approximately 600 m is not

considered to meet the intent of the

monitoring network specified by the

EMP.

Completed Installation of an additional bore

GW04A has reduced the spacing to

approximately 350 m between

GW04A and BW36A and

approximately 250 m between GW04

and GW04A.

Golder, 2019; Golder, 2020a;

Golder, 2020b:

The EMP listed trigger levels for ion

ratios should be reconsidered to

identify consistent declining trends in

concentration outside a range of

natural fluctuation. Resampling for

confirmation of exceedances should

be conducted within the specified

timeframe.

EMP has been revised (Version 5.1)

for application to future monitoring.

Auditor comment provided separately

(Golder, 2020c).

Completed in EMP Rev 5.1. -

Golder 2018:

The EMP should be amended to refer

to SEPP (Waters) and description of

associated beneficial uses and

environmental quality objectives







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updated as required. Iluka should

review TDS groundwater monitoring

data to ensure the appropriate

groundwater segment as described in

SEPP (Waters) is identified.

General Recommendations

Golder 2018

The EMP contains a significant

amount of background information on

the environmental conditions relevant

to Pit 23. This information provides

useful context on the local conditions

and aids in interpretation of

monitoring results, however, to assist

in the implementation of the EMP, it is

recommended that this information be

simplified or removed from the EMP

(but available to the Auditor

undertaking the review).







Golder 2018

The management actions and

monitoring requirements in the EMP

should be clarified and consolidated

to make it easier for Iluka personnel

to clearly identify requirements and







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associated procedures and to ensure

the contents of the Performance

Report align with the requirements of

the EMP.

Golder 2018

The reporting requirements currently

in Section 12.2 of the EMP should be

reviewed to ensure they are

consistent with all of the relevant

monitoring requirements contained in

Sections 7, 8 and 9 of the EMP







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9.0 REFERENCES

AECOM Audit of 2017 Mineral Sands By-product Disposal Annual Reports.

Golder Associates, 2018. Audit of 2018 Mineral Sands By-product Disposal EMP and IWMP Annual Reports

(19121052-001-Rev0).

Golder Associates, 2019. Audit of H1 2019 Mineral Sands By-product Disposal EMP and IWMP Annual

Reports (19121052-003-Rev1).

Golder Associates, 2020a. Audit of H2 2019 EMP and IWMP Performance Reports, Douglas Mine Pit 23 by-

product disposal site (19121052-006-Rev1).

Golder Associates, 2020b. Audit of H1 2020 EMP and IWMP Performance Reports, Douglas Mine Pit 23 by-

product disposal site (19121052-009-Rev0).

Golder Associates, 2020c. Review of Updated EMP and IWMP (19121052-004-L-Rev0).

Iluka Resources Ltd, 2016. Radiation Management Plan- Murray Basin Operations (Rev2) August 2016.

Iluka Resources Ltd, 2017. Incoming Waste Monitoring Plan (Rev 4) 5 April 2017.

Iluka Resources Ltd, 2017. Environment Management Plan (Rev 4) 6 July 2017.

Iluka Resources Ltd, 2017. Rehabilitation and Vegetation Management Plan (Rev3) 12 April 2017.

Iluka Resources Ltd, 2021. Planning Permit 15-105, EMP & Rehabilitation Performance Report – H2 2020.

(UDOCS 0058-1414587248-1098, FINAL_Rev0).

Iluka Resources Ltd, 2021. Planning Permit 15-105, Incoming Waste Monitoring Plan Report H2 – 2020

(UDOCS 0090-426461582-2341, Final Rev0).

Iluka Analytic Sampling Procedures

Analytical - Analysis using XRF 11/6/15.

Analytical - Moisture Determination 10/9/15.

Analytical - Sample Preparation - Fusion of Heavy Mineral 4/12/08.

Analytical - Sample Preparation - Pulverising Grinding Samples 18/10/14.

Analytical - Sample Preparation - Riffle Splitting 23/10/14.

Analytical - XRF QA 23/7/18.

High Volume Air Sampler, Sampling Procedure 26/7/17.

Trucking Procedures

Work Instruction for Loading of Monazite &Ilmenite CL product at Iluka MSP V8 Kalari P/L 28/09/2015.

Emergency Response Procedure for Non Conductor Magnetics V2 Kalari P/L 8/02/2011.

Work Instruction for unloading MSP rejects at Pit 23 V2 Kalari P/L 13/08/2015.

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10.0 IMPORTANT INFORMATION

Your attention is drawn to the document titled - “Important Information Relating to this Report”, which is

included in APPENDIX E of this report. The statements presented in that document are intended to inform a

reader of the report about its proper use. There are important limitations as to who can use the report and

how it can be used. It is important that a reader of the report understands and has realistic expectations about

those matters. The Important Information document does not alter the obligations Golder Associates has

under the contract between it and its client.

11.0 CLOSING

If you have any queries about this report, please contact Bruce Dawson on 03 8862 3774 or at

[email protected].

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Signature Page

Golder Associates Pty Ltd

Coen Romalis Bruce Dawson

Environmental Scientist Principal Environmental Consultant

CER/BED/cer

A.B.N. 64 006 107 857

Golder and the G logo are trademarks of Golder Associates Corporation

https://golderassociates.sharepoint.com/sites/107372/project files/6 deliverables/19121052-011-r h2 2020 performance review/19121052-011-r-rev0.docx

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Tables

Table A - Duplicate and Blank Analytical Results - November 2020

RPD

Unit Method

mg/L 1001G 0.0uS/cm COND-M 1.2

PH 0.0mg/L ALK 1.9mg/L ALK 1.9mg/L ALK 0.0mg/L ALK 0.0mg/L SO4 0.0mg/L NH3-LL-DA 0.0mg/L TON-HR-DA 0.0mg/L TON-HR-DA 0.0mg/L ORTP-LL-DA 0.0mg/L CHLORIDE 0.0mg/L FLUORIDE 0.0mg/L CATIONS 8.7mg/L CATIONS 0.0mg/L CATIONS 0.0mg/L CATIONS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 2.8mg/L ECO-METALS 0.0mg/L ECO-METALS 2.9mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 5.5mg/L ECO-METALS 0.0mg/L ECO-METALS 22.2mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 0.0mg/L ECO-METALS 6.5mg/L ECO-METALS 0.0

Lab. Received Date/Time EML Lab. No.

02/12/2020 09:00am EML-20599

02/12/2020 09:00am EML-20600

02/12/2020 09:00am EML-20601

Analyte

Sample DescriptionSample Collection Method

GW_4AReceived

BlindReceived

Field BlankReceived

Sample Taken Date/Time 30/11/2020 10:35am 30/11/2020 08:59am 30/11/2020 08:59am

pH 6.6 6.6 8.8Total Alkalinity as CaCO3 51 52 <1

Total Dissolved Solids @ 180C 4600 4600 66Conductivity at 25C 8100 8000 1.2

Hydroxide Alkalinity as CaCO3 0 0 <1Sulphate as SO4 360 360 <2

Bicarbonate Alkalinity as CaCO3 51 52 <1Carbonate Alkalinity as CaCO3 0 0 <1

Nitrite Nitrogen as N 0.12 0.12 <0.001Orthophosphate as P <0.004 <0.004 <0.004

Ammonia Nitrogen as N <0.004 <0.004 <0.004Nitrate Nitrogen as N 4.0 4.0 <0.005

Calcium as Ca 120 110 0.06Magnesium as Mg 140 140 <0.02

Chloride as Cl 2300 2300 <1Fluoride as F 0.31 0.31 <0.1

Total Aluminium as Al <0.01 <0.01 <0.01Total Antimony as Sb <0.001 <0.001 <0.001

Sodium as Na 1300 1300 <0.02Potassium as K 13 13 <0.02

Total Beryllium as Be <0.001 <0.001 <0.001Total Boron as B 0.35 0.34 <0.02

Total Arsenic as As 0.001 0.001 <0.001Total Barium as Ba 0.072 0.070 <0.001

Total Cobalt as Co 0.004 0.004 <0.001Total Copper as Cu <0.001 <0.001 <0.001

Total Cadmium as Cd <0.0002 <0.0002 <0.0002Total Chromium as Cr <0.001 <0.001 <0.001

Total Manganese as Mn 0.056 0.053 <0.001Total Molybdenum as Mo <0.001 <0.001 <0.001

Total Iron as Fe 0.01 0.01 <0.01Total Lead as Pb <0.001 <0.001 <0.001

Total Silver as Ag <0.001 <0.001 <0.001Total Strontium as Sr 1.4 1.4 <0.001

Total Nickel as Ni 0.005 0.004 <0.001Total Selenium as Se 0.011 0.011 <0.001

Total Tin as Sn 0.001 0.001 <0.001Total Titanium as Ti <0.001 <0.001 <0.001

Total Thallium as Tl <0.001 <0.001 <0.001Total Thorium as Th <0.002 <0.002 <0.002

Total Zinc as Zn 0.016 0.015 <0.001Total Mercury as Hg <0.0001 <0.0001 <0.0001

Total Uranium as U <0.001 <0.001 <0.001Total Vanadium as V 0.003 0.003 0.003

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APPENDIX A

IWMP Performance Report Audit

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Table 2: IWMP Performance Report Audit

Source & Requirement Observations Compliance Recommendations

Planning Permit Clause 14. Within 90 days of the

commencement of this permit operating, an Incoming

Waste Monitoring Plan (IWMP) must be submitted to the

satisfaction of the responsible authority and the

Department of Health and Human Services for approval

by the responsible authority. Three copies of the IWMP

must be submitted to the responsible authority. When

approved by the responsible authority the IWMP will be

endorsed and it will then form part of this permit. The

IWMP must provide for:

Compliant

a) A monitoring and reporting system for ensuring that

materials disposed of to Pit 23 are limited to those

permitted under the conditions of this permit

Section 3.1 of the IWMP Performance Report provides a

spreadsheet summary record stating material to be

disposed of is permitted.

No waste was disposed to Pit 23 during the H2 2020

reporting period.

Compliant

b) Recording the origin, per load weight and radioactive

properties of each incoming load.


spreadsheet summary recording the origin and load weight

of each material load.


summary of the radioactive properties of each material

load.

Compliant

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c) Monitoring to ensure all vehicles transporting waste

have fully secured and contained loads and that all

waste loads have been transported in compliance

with licensed requirements under the Radiation Act

2005;

Work instruction for Loading of Monazite and Ilmenite CL

product at the Iluka MSP- Hamilton site identifies that loads

are to be secured and contained.

Compliant

d) Records of any transport incidents or spills and

remedial actions taken in the event of such incidents.

Section 3.3.1 of the IWMP Performance Report states that

no transport incidents or spillages occurred over H2 2020

period.

Compliant

e) Annual auditing of records to verify compliance with

the requirements of the IWMP

This audit fulfils this requirement. Compliant

Amendments to the IWMP must be to the satisfaction of

the responsible authority and Department of Health and

Human Services and must only be made on written

approval of the responsible authority.

NA

IWMP Section 2 Acceptance Criteria

Source Site. Disposal into Pit 23 is restricted to materials

from the following source sites;

the Hamilton MSP;

the Douglas mineral sands mine;

the Kulwin mineral sands mine site (located 28

kilometres east of Ouyen);

Section 3.1 of the IWMP Performance Report states that

no material was disposed into Pit 23 during the H2 2020

reporting period.

Compliant

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the Woornack Rownack and Pirro mineral sands

mine site (located 20 km southwest of Ouyen);

Facilities operated by transport contractors

associated with the Port of Portland including the

heavy mineral concentrate (HMC) storage and train

loading facilities at Hopetoun; and

storage facilities in Portland used for storage of the

Hamilton MSP products

Radioactivity. Disposal to Pit 23 is restricted to materials

that contain and are contaminated with naturally occurring

radioactive material (NORM), which are:

mineral by-products from the Hamilton MSP,

including gypsum produced at the MSP;

used Bag-house dust filter bags (used filter bags);

and

concrete or steel from the sites listed in Section 2.1

above.



load.



reporting period.

Compliant

By-products for disposal. The Hamilton MSP by-

products to disposed into Pit 23 are;

Wet circuit rejects

Dry circuit rejects;

Gypsum



reporting period.

Compliant

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Bag hose dust filter bags

Contaminated concrete and steel

Material Description and physical form. Import for

disposal into Pit 23 is restricted to the following materials:

non-liquid waste by-products associated with or

sourced though mineral sands processing

undertaken at the Hamilton MSP containing or

contaminated with NORM;

used dust filter bags from the Hamilton MSP

containing or contaminated with NORM; and

NORM-contaminated concrete and steel associated

with plant and infrastructure from the sites listed in

Section 2.1 above



reporting period.

Compliant

IWMP Section 3. Monitoring

In accordance with heavy vehicle mass management

requirements under Chain of Responsibility legislation

administered by the Department of Economic

Development, Jobs, Transport and Resources (DEDJTR),

the weight of every truck load of material to be disposed

of will be measured at the point of loading, or the nearest

possible location, prior to transport to the Douglas mine

site. The load weight shall be measured by one of the

following means;

Section 3.1 of the IWMP Performance Report lists the load

weight of each delivery to Pit23. During the H2 2020

reporting period, no material was disposed to Pit 23.

Iluka has advised that a public commercial calibrated

weighbridge is used to weigh material disposed into Pit23.

Compliant

September 2021 19121052-011-R-Rev0

A5


calibrated weighbridge

calibrated on-board weighing systems (such as

airbag weightometers)

any other mass measurement system or

methodology approved by the DEDJTR for

demonstrating compliance with heavy vehicle mass

management requirement

For each individual load, the following information shall be

recorded in an electronic data management system:

load weight

material description

radioactive properties, being

▪ concentrations of uranium and thorium in MSP

by-products based on the weekly average of the

by products produced

▪ measured concentrations of uranium and thorium

in used filter bags, concrete and steel

Section 3.1 of the IWMP Performance Report provides

information on load weight and material description.



load.

During the H2 2020 reporting period, no material was

disposed to Pit 23.

Compliant

IWMP Section 4 Control of access for disposal

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A6


Prior to transport of materials to be disposed of in Pit 23,

vehicles will be checked:

for compliance with the ARPANSA Code of Practice

for Safe Transport of Radioactive Material; and

to confirm and ensure loads are fully secured and

contained.

Deliveries must enter the site via Elliotts Road and the

mine access road shown on the site plan (Figure 2).

All vehicles entering the site, including those carrying

materials for disposal to Pit 23, must be authorised and

must pass through a boom gate that may only be opened

with a swipe card issued to authorised personnel or by an

authorised Iluka employee at the site office. Each vehicle

must then stop at the site office to:

provide a record of the load being delivered (origin,

material type, load weight); and

comply with any site-specific requirements that apply

for entering the site.

Vehicles carrying materials for disposal for which the

required information is not provided or is not in

conformance with the permitted use will not be allowed to

dispose of their loads to Pit 23.

Work instruction for Loading of Monazite and Ilmenite CL

product at the Iluka MSP- Hamilton site reviewed.

Deliveries were not observed as part of this audit.

Furthermore, during the H2 2020 reporting period, no

material was disposed to Pit 23.

NA

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A7


IWMP Section 5 Monitoring Program

In order to confirm the presence of NORM within the MSP

by-products, Table 2 in the IWMP specifies the samples

collected and quantity measurements made:

The MSP was not operating during H2 2020, so no data

was available.

NA

Bag-house dust filter bags.

Prior to transport, sections of used filter bag cloth of

approximately 100 x 100 mm will be cut from at least five

used filter bags per consignment and each section

submitted for analysis

The MSP was not operating during H2 2020 and the IWMP

Performance Report did not identify that filter bags were

disposed of during H2 2020, so no data was available.

NA

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A8


NORM contaminated concrete and steel.

The sampling method applied will be dependent on the

precise nature of the material and will be developed and

applied on a case-by-case basis. Representative samples

of each consignment will be collected and submitted for

analysis

The MSP was not operating during H2 2020 and the IWMP

Performance Report did not identify that concrete and steel

were disposed of during H2 2020, so no data was

available.

NA

Mineral separation plant by-products. Analysis of MSP by-products is undertaken as follows:

desiccation within the MSP laboratory oven to

remove moisture;

pulverisation (as required) to produce a fine granular

matrix;

splitting to produce a representative sample of

appropriate size;

fusion of the sample to produce a glass bead; and

assay of the bead using an X-Ray Fluorescence

Spectrophotometer to determine the concentrations

of uranium and thorium.

The assay results are uploaded into Iluka’s production

statistics database as are the results of tonnage

measurements of the various streams. The data is then

used to calculate the uranium and thorium concentrations

in each of the wet circuits rejects, dry circuits rejects and

gypsum.

Analytical procedures were provided and reviewed. Compliant

September 2021 19121052-011-R-Rev0

A9


Analysis of filter bag samples will be undertaken at either

Iluka’s Hamilton laboratory or an external laboratory to

determine the concentrations of uranium and thorium.

Section 3.1 of the IWMP Performance Report states no

filter bags were disposed of to Pit 23 during H2 2020

reporting period.

NA

Samples of NORM contaminated concrete and steel will

be analysed at either Iluka’s MSP lab or an external

laboratory to determine the concentrations of uranium and

thorium.


concrete or steel was disposed of into Pit 23 during H2

2020 reporting period.

NA

IWMP Reporting

All data generated from the monitoring described above

will be recorded electronically in a data base managed by

Iluka. On an annual basis a report will be prepared

showing the following:

For each load:

Source site

Load weight

Radioactive properties being:

▪ assigned concentration of uranium and thorium

in MSP mineral byproducts, based on weekly

averages of by-products produced; and

▪ measured concentrations of uranium and thorium

in used filter bags, concrete or steel.

Section 3.1 and 3.2 of the IWMP Performance report

provides the source, weight and radioactive properties of

the received material.

During the H2 2020 reporting period, no material was

disposed into Pit 23.

Compliant

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A10


For the report period:

average concentration of uranium and thorium for

the MSP by-products, used filter bags, concrete and

steel;

total quantities of materials disposed of to Pit 23; and

records of any transport incidents or spills and

remedial actions taken in the event of such incidents.

Section 3.2 of the IWMP Performance Report provides

information on the radioactivity analysis of MSP by-

products disposed.


transport incidents or spillages occurred during the

reporting period.

Compliant

The Performance Report will be provided to a suitably

qualified auditor who will complete an audit of the data

provided and compliance with this IWMP.

This report is provided in accordance with the requirement

of the IWMP.

Compliant

Copies of the Performance Report and the audit report will

be submitted to the Responsible Authority.

As the Auditor understands that Iluka will submit the

performance reports and the audit report when complete,

compliance with this requirement cannot be verified. Iluka

has advised that the previous performance report has been

submitted to Council.

Compliant

IWMP Review

This IWMP shall be reviewed and amended if necessary,

to take account of:

advances in knowledge and technology pertaining to

by-product disposal; included in this report.

any significant change in operations;

changes in applicable legislation or standards;

Compliant

September 2021 19121052-011-R-Rev0

A11


changes in Iluka’s EHS standards;

or every two (2) years, which-ever occurs soonest.

Proposals for amendment of this plan will be prepared to

the satisfaction of the Responsible Authority and the

Department of Health and Human Services.

No amendments to the IWMP have been submitted in H2

2020. A review and update of the IWMP is has been

undertaken and is anticipated to be submitted to the

Relevant Authority in H1 2021.

Compliant

September 2021 19121052-011-R-Rev0

APPENDIX B

EMP & RVMP Performance

Report Audit

September 2021 19121052-011-R-Rev0

B1

Table 3: EMP Performance Report Audit

Requirement Observations Compliance Recommendations

EMP Section 12.2

A review of performance will be completed and an

EMP and Rehabilitation Performance Report

prepared annually, or less frequently as may be

agreed with the Responsible Authority.

The Environmental Management Plan and Rehabilitation

Performance Report has been prepared for H2 2020.

Section 2.5 of the EMP Performance Report states that due

to continued operations within Pit 23, no actions relevant to

rehabilitation and vegetation management were undertaken

in the H2 2020 reporting period.

Compliant

Each EMP and Rehabilitation Performance Report

will include for the period from the previous EMP

and Rehabilitation Performance Report:

the total tonnage of materials disposed of; Section 3 of the EMP Performance Report states that no

wastes were disposed into Pit 23 during the H2 2020

reporting period.

Compliant

the average and maximum number of

deliveries of materials for disposal per day;

and

Section 3 of the EMP Performance Report states that no

wastes were disposed into Pit 23 during the H2 2020

reporting period.

Compliant

the results of all measurements of:

▪ noise levels made in response to a

complaint regarding noise;

Section 4.3 of the EMP Performance Report states that

because complaints regarding noise levels have not been

Compliant

September 2021 19121052-011-R-Rev0

B2


made, noise monitoring as not been undertaken, as outlined

by Section 10.1.4. of the EMP.

▪ PM10 concentrations in air at sensitive

receptors;

Section 4.4 of the EMP Performance Report outlines the

results of the PM10 monitoring program that was undertaken

in H2 2020. During the reporting period, there were two

exceedances of the PM10 concentration limit on the 12th and

30th December 2020.

The H2 2020 Performance Report concluded that the

observed exceedances were not associated with Pit 23

activity, due to the prevailing wind direction and the

monitoring station association matrix, presented in Table 9.

The Auditor agrees with this assessment.

Compliant

▪ the results of all measurements of

groundwater level and quality;

Groundwater monitoring results are included in Section 4.1.

Monitoring locations and frequency were compliant with Table

7 of EMP. Wells requiring six-monthly gauging were gauged

in July 2021. Wells requiring monthly gauging were gauged

in each month of the reporting period. Well BW36A was

substituted for the decommissioned BW36. The new well

GW04A was included in monitoring from November 2020.

Groundwater quality field parameters are required by the

EMP to be collected at the same frequency as water level

gauging. These results are presented in Appendix C: it

appears that the required frequency was met.

Six-monthly sampling and laboratory analysis is required by

the EMP. This was conducted in July 2020, with additional

Compliant QAQC sampling

should be included as

part of each sampling

round and evidence of

data quality validation

of field and laboratory

QAQC results reported

in the annual

performance report.

Changes to EMP

trigger values and

contingencies adopted

in EMP (Rev 5.1)

September 2021 19121052-011-R-Rev0

B3


sampling at some locations to follow up trigger actions.

Laboratory reports from EML Chem and ALS were supplied,

which demonstrate NATA or equivalent accreditation. The

EMP (Section 7.6.8) requires analysis of QAQC samples as

part of each sampling round including field duplicates and

blank samples. Iluka has advised that the collection of QAQC

samples resumed in the November 2020 sampling round. A

laboratory report with a duplicate sample and a blank sample

was supplied for samples collected in November 2020.

Analysis for these samples was completed for metals,

nutrients and major ions, but analysis for radionuclides was

not reported.

The Auditor has assessed the relative percentage difference

between the primary sample and duplicate sample (Table A

attached). This indicates acceptable laboratory precision

based on the supplied results. The results of the field blank

sample indicated detectable concentrations of TDS (66

mg/L), calcium (0.06 mg/L) and vanadium (0.003 mg/L).

However, these concentrations are close to the respective

laboratory limits of reporting and orders of magnitude lower

than results from primary samples (for TDS and calcium) or

similar to results from primary samples (vanadium), so do not

indicate gross cross-contamination.

Comparison of Cl:SO4 and Na:Ca ratios were made as

required in the EMP. A decrease of more than 10%

compared to the previous six-monthly sample is a trigger for

should apply for

monitoring from 2021.

September 2021 19121052-011-R-Rev0

B4


further investigation. Decreases of more than 10% were

reported for five samples for Cl:SO4 (BW36A, BW53, GW01,

GW02, GW04) and three for Na:Ca (WRK302, WRK303,

WRK304), however, on repeat sampling in August 2020 or

September 2020 only BW36A (down-gradient) and GW04

(cross-gradient) confirmed more than 10% decrease in

Cl:SO4 ratio and only WRK304 (up-gradient) was confirmed

for Na:Ca ratio. The absolute concentration changes were

relatively small.

These ratio changes triggered an assessment of other

parameters against concentration-based trigger levels. This

indicated only selenium concentrations at GW04 in July 2020,

August 2020 and October 2020 were above the precautionary

trigger level (85% of ANZECC guideline). An assessment of

background conditions at GW04 was made based on

previous results, indicating background concentrations above

the trigger levels. It was concluded that the changes in

groundwater chemistry discussed were unlikely to be related

to seepage from Pit 23, particularly as GW04 is inferred to be

located across hydraulic gradient from Pit 23.

Surface water monitoring results are included in Section 4.2.

Surface water sampling is required on a quarterly basis, if

water is present, with additional sampling following off-site

run-off events. There were no off-site discharges of

stormwater reported, so additional sampling of off-site run-off

monitoring sites was not required. Three surface water

September 2021 19121052-011-R-Rev0

B5


monitoring sites inferred to be along the groundwater flow

path from Pit 23 (SW5B, SW20, SW24) were sampled in

September 2020 and October 2020, but were dry in June

2020 or July 2020. Two reference sites not on the inferred

groundwater flow path (SW22, SW14) were sampled in July

2020 and October 2020. Locations SW11, SW19, SW25,

SW27 were sampled in October 2020, and SW19 was also

sampled in November 2020.

The table in EMP Revision 4 which summarises the surface

water monitoring program (Table 15) lists 14 locations for

quarterly monitoring, five of which include major ion analysis.

Iluka advise that surface water locations were dry at the

remaining scheduled sampling times not reported.

Ionic ratios for the sampled locations did not indicate greater

than 10% decreases from the previous results, except for

SW22 (Shaw’s Gully). At SW22 the Na:Ca ratio in October

2020 was 20% lower than in July 2020. However, as this

location is a reference site not on the inferred flow path for

surface water or groundwater from the Pit 23 area, no further

action was required.

▪ the results of and actions taken in

response to monitoring bore audits;

All bores were reported to be in serviceable condition, with

BW36 replaced by BW36A in 2019.

Compliant

▪ environmental radiation monitoring

results in accordance with the approved

September 2021 19121052-011-R-Rev0

B6


Radiation Management Plan, which will

generally include:

− radon concentration in air; Results for Radon and Thoron monitoring in air were reported

in Section 4.5.1 and did not exceed the reportable level

during the reporting period. Sampling program is compliant

with the Radiation Management Plan monitoring program

(Section 9).

Compliant

− gross alpha activity concentration of

airborne dust; and

Gross alpha activity results were reported in Section 4.5.2. A

peak value of 0.228 mBq/m3 was recorded at Chadwick’s on

7 September 2020, which is in line with historical values.

Sampling program is compliant with the Radiation

Management Plan monitoring program (Section 9).

Compliant

− radionuclide concentrations in

groundwater and surface water

Groundwater radionuclide monitoring results were reported in

Section 4.1.3.2. Of the radionuclide concentrations analysed,

U238 exceeded the upper trigger level at GW06 and GW03

and exceeded the precautionary trigger at BW45B in July

2020. Repeat sampling in August 2020 at BW45B and in

January 2021 at GW03 indicated concentrations below the

trigger levels. GW06 was resampled in January 2021,

however, results were not available when the report was

issued. Ra228 exceeded the upper trigger level at one

location (BW45B) during the reporting period. This was

Compliant

September 2021 19121052-011-R-Rev0

B7


confirmed by resampling in August 2020. Bore BW45B is

located cross-hydraulic gradient from Pit 23, and has reported

similar Ra228 concentrations at each monitoring event since

2019. Bore GW06 is located up-hydraulic gradient from Pit

23, and has reported similar U238 concentrations since 2019.

Repeated radionuclide trigger exceedances were not

correlated with changes in major ion ratios, and were not

reported for down-gradient bores, so are unlikely to be related

to seepage from Pit 23.

Surface water radionuclide monitoring results were reported

in Section 4.2.2.2. There was no exceedance of trigger levels

for uranium or radium in surface water samples.

▪ discussion of any implications of the

results of groundwater level monitoring

on groundwater flow paths from Pit 23;

and

Inferred groundwater elevation contours from the reporting

period (H2 2020) were not presented, with the June 2020

contours included from the H1 2020 Performance Report.

The discussion of groundwater flow direction in Section 5.2 is

based on the H1 2020 contours, which are not directly

relevant to the reporting period. However, the hydrographs in

Section 4.1.2 of the report support that groundwater levels

are broadly consistent with previous monitoring. Figure 6

indicates that the water level at wells IWB6 has usually been

higher than at BW53, however this was reversed at times

during 2019 and 2020. This is not consistent with gauging

results in Table 2, where IWB6 remained higher than BW53.

Compliant The EMP (Section

7.9.1) requires Iluka to

construct groundwater

contours for each

monthly gauging

round. At least one of

these interpretations

should be supplied as

part of the

Performance Report.

September 2021 19121052-011-R-Rev0

B8


▪ descriptions of any model review and

recalibration completed and the results of

subsequent model reruns;

An update to the groundwater model was released in

September 2019 (EMM, 2019), including water level

monitoring results from March 2019. Groundwater levels and

inferred hydraulic conductivity from newly installed wells were

broadly consistent with the values used in the model in the

area of Pit 23. Monitoring results reported do not trigger a

requirement for a further update of the groundwater model.

Compliant

the maximum elevation of the upper surface

of materials disposed of at the end of the

reporting period

Included in Section 5.4 of the EMP Performance Report. As

no waste was disposed during the H2 2020 reporting period,

the maximum elevation remains unchanged at 193 m AHD.

Compliant

a detailed discussion of all non-compliant

events including progress toward resolution;

Section 5.5 of the Performance Report states that there were

no non-compliances during the reporting period. This is

consistent with the monitoring results discussed above.

Compliant

a summary of comments and complaints

received and resulting actions;

Section 5.6 of the EMP Performance Report states that no

complaints or comments were received during the H2 2020

reporting period.

Compliant

completed actions from the previous year Section 5.7 outlines three completed actions from the previous reporting period:

Submission of the updated Pit 23 IWMP and EMP as

required by the default two-year review period.

Annual review of the Risk Analysis and Response Plan

(RARP) as per section 6 of the EMP.

Installation of groundwater monitoring bore GW04A located

between GW04 and BW36A.

Compliant

September 2021 19121052-011-R-Rev0

B9


plans for the next reporting period; and This is addressed in Section 5.8 of the EMP Performance

Report, and includes:

Implementation of the ongoing monitoring requirements as

per the EMP.

Compliant

discussion on other matters considered

relevant by the Responsible Authority or

Iluka.

Section 5.9.1 of the EMP Performance Report confirms that

the geotechnical audit for 2020 was completed in December

2020. The next geotechnical audit is scheduled for

November 2021.

Section 5.9.2 states that the review of the Risk Analysis

Response Plan (RARP) was undertaken in November 2020.

The next review is scheduled for November 2021.

Compliant

Deficiencies identified in an EMP and

Rehabilitation Performance Report that can be

addressed without amendment of this plan will be

addressed as soon as practicable.

There was no section discussing this in the Performance

Report. The auditor notes that the EMP, IWMP and RVMP

have been updated in 2020, where deficiencies were

addressed.

Compliant

EMP and Rehabilitation Performance Reports will

be subject to review by an independent auditor as

described in Section 13.2 of the EMP

(Performance Review).

This audit report addresses the requirement. Compliant

EMP Section 13.2 Performance Review

September 2021 19121052-011-R-Rev0

B10


The performance review function is, in part, an

audit function in that the selected auditor will be

required to audit EMP and Rehabilitation

Performance Report to confirm its completeness

and accuracy in terms of compliance of the

implementation of the plan and compliance with

established standards and limits. In addition to

these audit functions the selected auditor will be

invited to recommend amendments to the EMP to

ensure future compliance.

This audit report addresses the requirement. Compliant

There are a number of requirements of the expert

in this case, including:

· EPA auditor accreditation;

· independence (from Iluka);

· suitable qualifications;

· expertise in risk management plans in the

context of mines and quarries; and

· to the satisfaction of the Responsible Authority.

It is extremely unlikely that an expert meeting all of

these requirements exist, however, an expert may

choose to direct the work of others. A scope of

works will be prepared and a number of EPA

accredited auditors asked to submit proposals for

the completion of performance reviews. Iluka will

Iluka has selected Bruce Dawson to undertake the audit as a

suitably qualified Auditor appointed under the Environment

Protection Act 1970. More information about the auditor is

included in Section 3.0 of this report.

Compliant

September 2021 19121052-011-R-Rev0

B11


select the best candidate and provide the

Responsible Authority with details of the candidate

and their proposal for completion of works. The

Responsible Authority may indicate its agreement

with the candidate selected or request that details

of an alternative be provided.

A copy of the selected auditor’s report will be

provided to the Responsible Authority with each

EMP Performance Report.



compliance with this requirement cannot be verified.

NA

Any deficiencies identified or recommendations

made by the auditor will be dealt with in

accordance with Conditions 44 and 45 of the

Permit, which require:

Copies of the EMP and Rehabilitation

Performance Report and the auditor’s report

to be provided to the Responsible Authority

with 28 days of receipt of the auditor’s report




NA

A description of steps to be taken, including

timeframes, to address any non-compliance

and recommendations identified in the EMP

and Rehabilitation Performance Report and

the auditor’s report be provided to the

Responsible Authority within 28 days of

submission of the EMP and Rehabilitation




NA

September 2021 19121052-011-R-Rev0

B12


Performance Report to the Responsible

Authority; and

The Responsible Authority to determine

whether amendment to the EMP or RVMP is

required and the timeframe and conditions

under which such amendment is to occur.

EMP and RVMP have recently been reviewed and updated in

H2 2020.

NA The EMP and RVMP

have been reviewed by

the Auditor and the

Auditor understands

that they will be

adopted for the next

reporting period.

Copies of the EMP and Rehabilitation

Performance Report and the auditor’s report to be

provided to the Responsible Authority with 28

days of receipt of the auditor’s report




NA

September 2021 19121052-011-R-Rev0

APPENDIX C

Iluka IWMP Performance Report

H2 2020

Iluka Resources Limited Mineral Sands By-Product Disposal

Planning Permit 15-105

Crown Allotments 91, 94, 95, 96

Parish of Telangatuk

Incoming Waste Monitoring Plan Report H2– 2020

Iluka Ref: UDOCS 0090-426461582-2341

Contact: Ian Williams

Environment Superintendent, Murray Basin [email protected]

mailto:[email protected]

Iluka Resources Ltd Planning Permit 15-105: Mineral Sands By-Product Disposal (Pit 23)

Iluka Ref: UDOCS 0090-426461582-2341 Final (Rev 0)

Incoming Waste Monitoring Plan, Annual Report H2 2020

i

Document control

Revision Details of review or changes Prepared by Date

0 Final S. Alexander 8-02-2021




ii

Table of contents 1 EXECUTIVE SUMMARY ....................................................................................................... 3 2 INTRODUCTION.................................................................................................................... 4

2.1 PLANNING PERMIT 15-105 ......................................................................................................... 4 2.2 COMMENCEMENT OF THE PERMIT .......................................................................................... 4 2.3 ENDORSED PLANS ...................................................................................................................... 7 2.4 PERMIT CONDITION REQUIREMENT FOR AN IWMP ............................................................... 7 2.5 IWMP REPORTING REQUIREMENTS ........................................................................................ 7

3 MONITORING RESULTS ...................................................................................................... 9 3.1 PER LOAD MONITORING DATA ................................................................................................. 9 3.2 REPORTING PERIOD MONITORING DATA ............................................................................... 9 3.3 INCIDENTS AND REMEDIAL ACTIONS ...................................................................................... 9 3.4 OTHER MATTERS ........................................................................................................................ 9

List of tables Table 1: Individual load data for incoming wastes to Pit 23, H2 2020 .............................................................. 9

Table 2: Quantities and radioactivity results for disposed MSP by-products, H2 2020 ..................................... 9

List of figures Figure 1: Douglas Mine and Pit 23 Regional Location ....................................................................................... 5

Figure 2: Pit 23 Location .................................................................................................................................... 6




3

1 Executive Summary Iluka Resources Limited (Iluka) operates the Pit 23 by-products disposal facility located at the Douglas Mine in the Kanagulk area and within the municipality of the Horsham Rural City. Pursuant to Planning Permit 15-105 issued by Horsham Rural City Council (HRCC), and the subsidiary Pit 23 Incoming Waste Monitoring Plan (IWMP), the Pit 23 facility is approved for the disposal of:

• non-liquid waste by-products associated with or sourced though mineral sands processing undertaken at the Iluka Hamilton Mineral Separation Plant (MSP) containing or contaminated with Naturally Occurring Radioactive Material (NORM);

• used dust filter bags from the Hamilton MSP containing or contaminated with NORM; and

• NORM-contaminated concrete and steel associated with plant and infrastructure from nominated Iluka sites within Victoria.

This report is submitted in accordance with Section 6 of the IWMP and provides a summary of the wastes received into Pit 23 (origin, volumes/weights and radioactive properties) and records of incidents and remedial actions applicable to the reporting period of 1st July 2020 to 31st December 2020. Key commentary on monitoring outcomes and performance against compliance objectives in the IWMP for the H2 2020 reporting period:

• No waste disposed into Pit 23 in the H2 2020 reporting period; and

• No transport incidents or spillages occurred.

Summary incoming waste data and incident information is provided in Section 3.




4

2 Introduction Iluka Resources Limited (Iluka) operates the Pit 23 by-products disposal facility located at the Douglas Mine in the Kanagulk area and within the municipality of the Horsham Rural City (Figure 1 and Figure 2). Pursuant to Planning Permit 15-105 issued by Horsham Rural City Council (HRCC), and the subsidiary Pit 23 Incoming Waste Monitoring Plan (IWMP), the Pit 23 facility is approved for the disposal of mineral separation by-products and used dust filter bags from the Iluka Hamilton Mineral Separation (MSP) which contain or are contaminated with Naturally Occurring Radioactive Material (NORM), and concrete and steel which contains or is contaminated with NORM associated with plant and infrastructure from nominated Iluka sites within Victoria.

2.1 Planning Permit 15-105

Under the Horsham Planning Scheme the subject land is in the Farming Zone and under the provisions of that zone a permit is required for use and development for Industry (Refuse Disposal). On 25th February 2017 Planning Permit 15-105, (the Permit) was issued by the Horsham Rural City Council as the Responsible Authority to allow:

Use and development of the land for the disposal of waste by-products associated with or sourced through mineral sands processing undertaken at the Hamilton Mineral Separation Plant (MSP), including waste by-products and contaminated materials resulting from the processing and transport operations as follows:

o By-products from the processing of heavy mineral concentrate at the Hamilton MSP;

o used dust filter bags from the Hamilton MSP; and

o Other chemically inert material contaminated with naturally occurring radioactive material.

in accordance with the endorsed plans.

2.2 Commencement of the Permit

Condition 1 of the Permit states:

This permit does not come into operation until:

a. Iluka has applied to the Department of Economic Development, Jobs, Transport and Resources to vary the 2003 Work Plan to identify a new endues utilisation of Pit 23 and to vary the rehabilitation plan; and

b. Iluka has applied to the Minister to surrender part of MIN 53671 (Pit 23); and

c. The Department of Economic Development, Jobs, Transport and Resources has approved the Work Plan Variation; and

d. The Minister has registered the partial surrender of MIN 5367.

The permit comes into operation on the same day the Work Plan Variation is approved, and the partial surrender of MIN 5367 is registered.

The Variation to the 2003 Douglas Mine Work Plan was approved on the 13th April 2017, and the partial surrender of MIN 5367 was registered on 11th May 2017, this being the date of commencement of the Permit.

1 Iluka Resources Douglas Mine – Mining Licence No. 5367 (‘MIN 5367’)

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DOUGLAS

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HRCC-PP-15-105 MIN5367

TELANGATUK EAST

HARROW

N

Black Range State Park

0 2.5 5 km 5880000

Map Projection: MGA Zone 54

Legend

Douglas mine

Pit 23

HRCC-PP-15-105

MIN5367 tenement

DOUGLAS LOCATION PLAN

ORIG:

N.Travers

DRAWN: D.G.S.

SCALE: 1:250,000

(A4)

DATE: May 2018

DWG No:

247670 ver.00 FIGURE: 1

NATIMUK FRANCES ROAD

580000

560000

5600

00

5800

00

D A O R S E I N H C

WOMB K E ELANO M C

ROAD

AD

LKRO

NAGU

-KA

RROW

HA D

A O R

S D Y E E M

L A N

N U

BRANDTS ROA

Pit 10

Pit 23 Pit 9

Pit 22

Pit 5

Pit 21

Pit 12

N Pit 11

Pit 19

Pit 2 Pit 3

Pit 1

Legend

Pit 23 haul road 0 Mine Access Road Truck wash circuit Pit 23 crest Pit Crests

Roads

250

Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community

Meters

500 1,000 1,500 2,000

LOCATION OF PIT 23

L:\Maps\2018\Unregistered\Douglas\mxd\Pit 23 Annual Report 2017

DRAWN: N. Travers

DATE:26/06/2018 FIGURE: 2




7

2.3 Endorsed Plans

Conditions 2, 3, 9, 14, 16 and 34 of the Permit relate to various management plans that once approved by the Responsible Authority will be endorsed to form part of the Permit, which includes:

• Incoming Waste Monitoring Plan (IWMP);

• Environmental Management Plan (EMP), incorporating; o Groundwater Monitoring and Management Plan (GWMMP); o Surface Water Monitoring and Management Plan (SWMMP); o Air Quality/Dust Control Plan (AQMP); and

• Rehabilitation and Vegetation Management Plan (R&VMP)

The plans were endorsed by Horsham Rural City Council on 17th July 2017. 2.4 Permit condition requirement for an IWMP

To ensure compliance with the permitted use (Section 2.1) the Permit includes the following condition concerning the requirement for and content of an IWMP:

Incoming Waste Monitoring Plan 14. Within 90 days of the commencement of this permit operation, an Incoming Waste Management Plan

(IWMP) must be prepared to the satisfaction of the Responsible Authority in consultation with the Department of Health and Human Services for the approval by the responsible authority. Three copies of the plan must be provided to the responsible authority. When approved by the responsible authority the IWMP will be endorsed and it will then form part of this permit. The IWMP must provide for

a) A monitoring and reporting system for ensuring that materials disposed of to Pit 23 are limited to those approved under the conditions of this permit;

b) Recording of the origin, per load weight and radioactive properties of each incoming load;

c) Monitoring to ensure all vehicles transporting waste have fully secured and contained loads and that all waste loads have been transported in compliance with licence requirements under the Radiation Act 2005;

d) Records of any transport incidents or spill and remedial actions taken in the event of such incidents; and

e) Annual audits of records to verify compliance with the requirements of the IWMP 2.5 IWMP reporting requirements

Section 6 of the IWMP states the following reporting requirements:

On an annual basis a report will be provided showing the following:

• For each load: o source site; o load weight; and o material description; and

• For the report period: o radioactivity of by-products on a monthly basis; and o total quantities of by-products disposed of to Pit 23.

The annual report will be provided to a suitably qualified auditor who will complete an audit of the data provided and compliance with this IWMP. Copies of the annual report and the audit report will be submitted to the Responsible Authority

These reporting requirements are addressed in the following sections.




8

3 Monitoring Results 3.1 Per load monitoring data

In accordance with Section 6 of the endorsed IWMP, data associated with each load of incoming waste is shown in Table 1. No loads of material were received into Pit 23 in the H2 2020 reporting period.

Table 1: Individual load data for incoming wastes to Pit 23, H2 2020

Date Week No. Source site Location Code Material Code Load weight (t)

3.2 Reporting period monitoring data

In accordance with Section 6 of the endorsed IWMP, the monthly average radioactivity of by- products shall be reported. However, no by-products were disposed into Pit 23 during the reporting period. No samples required for radionuclide analysis as shown in Table 2.

Table 2: Quantities and radioactivity results for disposed MSP by-products, H2 2020

Product Product (tonnes) Th (ppm) U (ppm)

Dry circuit rejects 0 n/a n/a Wet circuit rejects 0 n/a n/a Baghouse dust filter bags 0 n/a n/a

Total 0 3.3 Incidents and remedial actions

3.3.1 Incidents or spills No transport incidents or spillages occurred during the reporting period

3.3.2 Remedial actions taken None required

3.4 Other matters None identified.

September 2021 19121052-011-R-Rev0

APPENDIX D

Iluka EMP & IWMP Performance

Report H2 2020

Iluka Resources Limited

Mineral Sands By-Product Disposal

Planning Permit 15-105

Crown Allotments 91, 94, 95, 96

Parish of Telangatuk

Environmental Management Plan and Rehabilitation Performance Report – H2 2020

Iluka Ref: UDOCS 0058-1414587248-1098

Contact: Ian Williams

Environment Superintendent, Murray Basin [email protected]


EMP and Rehabilitation Performance Report – H2 2020 FINAL (Rev 0)

i

Document control

Revision Details of review or changes Prepared by Date created

A Draft S. Alexander 10-03-2021

0 Final S.Alexander



ii

Table of contents

1 EXECUTIVE SUMMARY ....................................................................................................... 5

2 INTRODUCTION ................................................................................................................... 6

2.1 PLANNING PERMIT 15-105.......................................................................................................... 6 2.2 COMMENCEMENT OF THE PERMIT .......................................................................................... 6 2.3 ENDORSED PLANS ...................................................................................................................... 9 2.4 PERFORMANCE REPORTING .................................................................................................... 9 2.5 REHABILITATION AND VEGETATION MANAGEMENT PLAN ................................................. 10

3 DELIVERY AND DISPOSAL OF MATERIALS INTO PIT 23 ............................................... 10

4 MONITORING RESULTS .................................................................................................... 10

4.1 GROUNDWATER ........................................................................................................................ 10 4.2 SURFACE WATER QUALITY ..................................................................................................... 36 4.3 NOISE .......................................................................................................................................... 41 4.4 PM10 CONCENTRATIONS IN AIR .............................................................................................. 41 4.5 RADIATION MONITORING – OTHER ........................................................................................ 45

5 MANAGEMENT ACTIONS .................................................................................................. 49

5.1 MONITORING BORE AUDITS .................................................................................................... 49 5.2 GROUNDWATER FLOW PATHS FROM PIT 23 ........................................................................ 49 5.3 GROUNDWATER MODEL REVIEW AND RECALIBRATION .................................................... 51 5.4 MAXIMUM SURFACE LEVEL OF DISPOSED MATERIALS IN PIT 23 ..................................... 51 5.5 NON-COMPLIANCES ................................................................................................................. 51 5.6 COMMENTS AND COMPLAINTS RECEIVED ........................................................................... 51 5.7 H2 2020 COMPLETED ACTIONS ............................................................................................... 51 5.8 H1 2021 PROPOSED ACTIONS ................................................................................................. 52 5.9 OTHER MATTERS ...................................................................................................................... 52

6 REFERENCES .................................................................................................................... 53

7 APPENDICES ...................................................................................................................... 54

APPENDIX A: MONITORING DATA (LAB) – RADIATION – SURFACE WATER ................................ 54 APPENDIX B: MONITORING DATA (LAB) – GROUNDWATER .......................................................... 55 APPENDIX C: MONITORING DATA (FIELD) – GROUNDWATER .................................................... 116 APPENDIX D: MONITORING DATA (LAB) – SURFACE WATER ..................................................... 135 APPENDIX E: MONITORING DATA (FIELD) – SURFACE WATER .................................................. 152



iii

List of tables

Table 1: Pit 23 bore status (as at 31/12/2020) ................................................................................................. 10

Table 2: Monitoring bores - standing water Levels (mAHD) ............................................................................ 13

Table 3: Groundwater monitoring locations – ionic ratio balance results ........................................................ 16

Table 4: Groundwater radionuclide concentrations vs. ionic balance ratios, H2 2020 .................................... 23

Table 5: Groundwater quality exceedances vs ionic balance ratios, H2 2020 ................................................ 35

Table 6:Selenium groundwater trigger levels for GW04, H2 2020 .................................................................. 35 Table 7: Surface water monitoring - ionic ratio balance results ....................................................................... 37

Table 8: Monitoring program – radionuclide concentrations in surface water ................................................. 40

Table 9: Elevated PM10 association with Pit 23 matrix ................................................................................... 42

Table 10: PM10 exceedance assessment, H2 2020 ......................................................................................... 43

Table 11: Radon concentrations within Pit 23 for H2 2020 .............................................................................. 46 Table 12: Thoron concentrations within Pit 23 for H2 2020 ............................................................................. 46

Table 13: Gross Alpha radiation in PM10 dust .................................................................................................. 48

List of figures

Figure 1: Douglas Mine and Pit 23 regional location ......................................................................................... 7

Figure 2: Pit 23 location ..................................................................................................................................... 8

Figure 3: Pit 23 updated groundwater monitoring network (as at 31/12/2019) ................................................ 12

Figure 4: Groundwater elevation (mAHD) – bores in predicted flow path ....................................................... 14

Figure 5: Groundwater elevation (mAHD) – bores up-gradient of Pit 23 ......................................................... 14 Figure 6: Groundwater elevation (mAHD) – cross-gradient and background bores ........................................ 15

Figure 7: U-238 and ionic balance trends – up-gradient bores (1 of 2) ........................................................... 31

Figure 8: U-238 and ionic balance trends – up-gradient bores (2 of 2) ........................................................... 31

Figure 9: Ra-228 and ionic balance trends – up-gradient bores (1 of 2)s ....................................................... 31

Figure 10: Ra-228 and ionic balance trends – up-gradient bores (2 of 2) ....................................................... 31

Figure 11: U-238 and ionic balance trends – down-gradient bores (1 of 2) .................................................... 32 Figure 12: U-238 and ionic balance trends – down-gradient bores (2 of 2) .................................................... 32

Figure 13: Ra-228 and ionic balance trends – down-gradient bores (1 of 2) .................................................. 32

Figure 14: Ra-228 and ionic balance trends – down-gradient bores (2 of 2) .................................................. 32

Figure 15: U-238 and ionic balance trends – cross-gradient bores (1 of 2) .................................................... 33

Figure 16: U-238 and ionic balance trends – cross-gradient bores (2 of 2) .................................................... 33 Figure 17: Ra-228 and ionic balance trends – cross-gradient bores (1 of 2) .................................................. 33

Figure 18: Ra-228 and ionic balance trends – cross-gradient bores (2 of 2) .................................................. 33

Figure 19: U-238 and ionic balance trends – bores representing background (1 of 2) ................................... 34

Figure 20: U-238 and ionic balance trends – bores representing background (2 of 2) ................................... 34

Figure 21: Ra-228 and ionic balance trends – bores representing background (1 of 2) ................................. 34

Figure 22: Ra-228 and ionic balance trends – bores representing background (2 of 2) ................................. 34 Figure 23: GW04 - Selenium as compared against ionic balance trends ........................................................ 36

Figure 24: Ra-226 and Ra-228 in surface water .............................................................................................. 40



iv

Figure 25: Uranium and U-238 in surface water .............................................................................................. 41

Figure 26: PM10 dust concentrations at neighbouring residences vs. daily rainfall ......................................... 42

Figure 27: Pit 23 air quality (PM10) monitoring locations .................................................................................. 44

Figure 28: Radon and thoron detectors ........................................................................................................... 45 Figure 29: Radon concentration in air, H2 2020 .............................................................................................. 47

Figure 30: Thoron concentration in air, H2 2020 ............................................................................................. 47

Figure 31: Gross Alpha Radiation in PM10 Dust – H2 2020 ........................................................................... 48

Figure 32: 2019 vs 2020 interpreted groundwater contours (EMM 2019; EMM 2020) .................................... 50



5

1 Executive Summary

Iluka Resources Limited (Iluka) operates the Pit 23 by-products disposal facility located at the Douglas Mine in the Kanagulk area and within the municipality of the Horsham Rural City.

Pursuant to Planning Permit 15-105 issued by Horsham Rural City Council (HRCC), and the subsidiary Pit 23 Incoming Waste Monitoring Plan (IWMP), the Pit 23 facility is approved for the disposal of mineral separation by-products and used dust filter bags from the Iluka Hamilton Mineral Separation (MSP) which contain or are contaminated with Naturally Occurring Radioactive Material (NORM), and concrete and steel which contains or is contaminated with NORM associated with plant and infrastructure from nominated Iluka sites within Victoria.

Complementing the IWMP are the endorsed Pit 23 Environmental Management Plan (EMP) which addresses the identification, management and monitoring of environmental risks associated with the approved development and use; and the endorsed Rehabilitation and Vegetation Management Plan (R&VMP) which addresses the future rehabilitation of the Pit 23 facility including infrastructure decommissioning, landform reinstatement and end land use.

This report is submitted in accordance with Section 12.2 of the endorsed Iluka Pit 23 EMP and outlines the results of monitoring and management actions undertaken during the period 1st July 2020 to 31st December 2020.

Key commentary on environmental monitoring outcomes and performance against compliance objectives in the Pit EMP for the H2 2020 reporting period:

• There were no exceedances of applicable limits for radionuclides or any other analytes in groundwater in bores down-gradient of Pit 23 attributable to disposal activities;

• There were no surface water discharges from the Pit 23 disturbance area;

• There were no exceedances of applicable limits for radionuclides or any other analytes in groundwater-fed surface water sites down-gradient of Pit 23 attributable to disposal activities;

• No noise complaints were received;

• There were no exceedances of the PM10 limit attributable to Pit 23 operations;

• There were no exceedances of the air concentration limits for radon or thoron;

• Measured concentrations of gross alpha radiation in airborne dust were within the range of historical values; and

• Updated groundwater level contours and flow-paths show no material change from the hydrogeological model contours developed in 2015 by CDM Smith.

Detailed assessment of compliance, key results and management actions are provided in Section 4 and 5 of the enclosed report.



6

2 Introduction

Iluka Resources Limited (Iluka) operates the Pit 23 by-products disposal facility located at the Douglas Mine in the Kanagulk area and within the municipality of the Horsham Rural City (Figure 1 and Figure 2).

Pursuant to Planning Permit 15-105 issued by Horsham Rural City Council (HRCC), and the subsidiary Pit 23 Incoming Waste Monitoring Plan (IWMP), the Pit 23 facility is approved for the disposal of mineral separation by-products and used dust filter bags from the Iluka Hamilton Mineral Separation (MSP) which contain or are contaminated with Naturally Occurring Radioactive Material (NORM), and concrete and steel which contains or is contaminated with NORM associated with plant and infrastructure from nominated Iluka sites within Victoria.

2.1 Planning Permit 15-105

Under the Horsham Planning Scheme the subject land is in the Farming Zone and under the provisions of that zone a permit is required for use and development for Industry (Refuse Disposal). On 25th February 2017 Planning Permit 15-105, (the Permit) was issued by the Horsham Rural City Council as the Responsible Authority to allow:

Use and development of the land for the disposal of waste by-products associated with or sourced through mineral sands processing undertaken at the Hamilton Mineral Separation Plant (MSP), including waste by-products and contaminated materials resulting from the processing and transport operations as follows:

o By-products from the processing of heavy mineral concentrate at the Hamilton MSP;

o used dust filter bags from the Hamilton MSP; and

o Other chemically inert material contaminated with naturally occurring radioactive material.

in accordance with the endorsed plans.

2.2 Commencement of the Permit

Condition 1 of the Permit states:

This permit does not come into operation until:

a. Iluka has applied to the Department of Economic Development, Jobs, Transport and Resources to vary the 2003 Work Plan to identify a new endues utilisation of Pit 23 and to vary the rehabilitation plan; and

b. Iluka has applied to the Minister to surrender part of MIN 5367 (Pit 23); and

c. The Department of Economic Development, Jobs, Transport and Resources has approved the Work Plan Variation; and

d. The Minister has registered the partial surrender of MIN 5367.

The permit comes into operation on the same day the Work Plan Variation is approved, and the partial surrender of MIN 5367 is registered.

The Variation to the 2003 Douglas Mine Work Plan was approved on the 13th April 2017, and the partial surrender of MIN5367 was registered on 11th May 2017, this being the date of commencement of the Permit.

FIGURE:(A4)ORIG: DRAWN: SCALE: DATE: DWG No:

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May 2018 247670 ver.00

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MIN5367 tenement

HRCC-PP-15-105

Pit 23

WA

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JASPER LANE

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Pit 22

Pit 5

Pit 10

Pit 9Pit 23

Pit 11

Pit 12

Pit 3

Pit 1

Pit 2

Pit 21

Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS,

AeroGRID, IGN, and the GIS User Community

2L:\Maps\2018\Unregistered\Douglas\mxd\Pit 23 Annual Report 2017 N. Travers 26/06/2018

N

0 500 1,000 1,500 2,000250MetersLegend

Pit 23 haul road

Mine Access Road

Truck wash circuit

Pit 23 crest

Pit Crests

Roads

LOCATION OF PIT 23

FIGURE:DRAWN: DATE:



9

2.3 Endorsed Plans

Conditions 2, 3, 9, 14, 16 and 34 of the Permit relate to various management plans that once approved by the Responsible Authority will be endorsed to form part of the Permit, which includes:

• Incoming Waste Monitoring Plan (IWMP);

• Environmental Management Plan (EMP), incorporating;

o Groundwater Monitoring and Management Plan (GWMMP);

o Surface Water Monitoring and Management Plan (SWMMP);

o Air Quality/Dust Control Plan (AQMP); and

• Rehabilitation and Vegetation Management Plan (R&VMP)

The plans were endorsed by Horsham Rural City Council on 17th July 2017.

2.4 Performance reporting

Section 12.2 of the endorsed EMP (Rev 4, July 2017) outlines the routine reporting requirements for the mineral sands by-product disposal operations which are:

A review of the performance will be completed and an EMP and Rehabilitation Performance report prepared annually, or less frequently as may be agreed with the Responsible Authority.

Each EMP and Rehabilitation Performance Report will include, at least:

• for the period from the previous EMP and Rehabilitation Performance Report:

o the total tonnage of materials disposed of;

o the average and maximum number of deliveries of materials disposed of per day; and

o the results of all measurements of:

noise levels made in response to a complaint regarding noise;

PM10 concentrations in air at sensitive receptors;

environmental radiation monitoring results in accordance with the approved Radiation Management Plan, which will generally include:

- radon concentration in air;

- gross alpha activity concentration of airborne dust; and

- radionuclide concentrations in groundwater and surface water;

discussion of any implications of the results of groundwater level monitoring on groundwater flow paths from Pit 23; and

descriptions of any model review and recalibration completed and the results of subsequent model re-runs;

• the maximum elevation of the upper surface of materials disposed of at the end of the reporting period;

• a detailed discussion of all non-compliant events including progress toward resolution;

• a summary of comments and complaints received and resulting actions;

• plans for the next year; and

• discussion on other matters considered relevant by the Responsible Authority or Iluka.

Deficiencies identified in an EMP and Rehabilitation Performance Report that can be addressed without amendment of this plan will be addressed as soon as practicable.



10

Per Section 13.2 of the EMP, the EMP and Rehabilitation Performance Reports will be subject to review by an independent auditor prior to submission to the Responsible Authority.

2.5 Rehabilitation and Vegetation Management Plan

Due to continued operations within Pit 23 no actions relevant to rehabilitation and vegetation management were undertaken in the H2 2020 reporting period.

3 Delivery and Disposal of Materials into Pit 23

No wastes were disposed into Pit 23 during the H2 2020 reporting period.

4 Monitoring Results

4.1 Groundwater

4.1.1 Bore network status

The Pit 23 bore network includes additional monitoring bores installed in 2018 per the recommendations in the independent desktop review of proposed by-product disposal (EES, 2016). Since the installation of these bores, the augmented bore network satisfies Condition 28(c) of the Permit. The status of Pit 23 monitoring bore network is given in Table 1.

As per the auditors recommendations (Golders 2020) from the H1 2020 Performance Report a new monitoring bore (GW04A) was installed in October 2020:

• consistent with Section 7.6.3 the bore (GW04A) was installed by a licensed driller pursuant to a ‘Licence to Construct Works’ (Works Licence WLE079378) issued by GWM Water; and

• as per Condition 28(d) of the Permit, the bore installation was supervised by qualified hydrogeologist.

Permeabilty assessment of the newly installed bore GW04A was completed in the reporting period with a permeability result of 0.97m/day which is consistant with values used in previous modelling predictions conducted by CDM Smith (2014) and EMM (2019) that utilised a horizontal hydraulic conductivity range of 0.1 to 15m/day thereby no update or review of the groundwater model is required.

Monitoring bore locations are provided in Figure 3.

Table 1: Pit 23 bore status (as at 31/12/2020)

Well ID Comment Status / Condition

BORES UP-GRADIENT OF PIT 23

WRK301 OK

WRK302 OK

WRK303 OK

WRK304 OK

GW08 Installed 18/10/18 OK



BORES DOWN-GRADIENT OF PIT 23 (IN PREDICTED FLOW PATH)

BW36A Installed 15/10/19 To replace BW36

WRK300 OK



11

Well ID Comment Status / Condition




GW04A Installed 15/10/2020 OK

BW5 In predicted flow path OK

BORES CROSS-GRADIENT TO PIT 23 FLOW PATH

GW04* Installed 18/10/18 OK


BW28A * OK

BW45B Installed 18/10/18 – replaced BW45 OK

BORES REPRESENTATIVE OF BACKGROUND

IWB2 Representative of background OK

IWB6 Representative of background OK

BW53 (“Puls”) Representative of background OK * BW28A and GW04 are incorrectly referenced in the current endorsed EMP (Rev 4, July 2017) as being down-gradient of Pit 23. Groundwater modelling per CDM Smith (2014) and EMM (2019) indicate that BW28A and GW04 are cross-gradient to the predicted flow path from Pit 23.

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3S.Alexander D.G.S. June 2020 257184 ver.011:25,000 FIGURE:

Site photo: 5 Oct. 2018N

0 500 1,000 m

DOUGLAS MINEPIT 23 MONITORING BORE NETWORK &

GROUNDWATER FLOW PATH

Legend

Bore Position/Purpose

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Pit 23 Particle Tracks

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13

4.1.2 Standing water levels

In accordance with Section 7.9.1 of the current endorsed EMP (Rev 4, July 2017) groundwater levels are measured on a monthly basis at bores WRK300 – WRK304 inclusive, GW01 to GW08 inclusive and BW36A and BW45B. All other bores (BW5, BW28A, BW53, IWB2 and IWB6) are measured on a biannual basis.

Groundwater level hydrographs for these bores expressed in groundwater elevation (metres above Australian Height Datum, mAHD) are given in Table 2 and Figure 4 – Figure 6. Data includes that obtained during scheduled events and ad-hoc measurements.

All bores along the predicted flow path (Figure 4) exhibit stable standing water levels in the preceding 24-month period and in comparison to long-term trends; bores up-gradient of Pit 23 (Figure 5) exhibit relatively stable water levels with minor fluctuation.

Table 2: Monitoring bores - standing water Levels (mAHD)

Bore ID Jul-20 Aug-20 Sep-20 Oct-20 Nov-20 Dec-20

BORES UP-GRADIENT OF PIT 23 GW05 178.9 178.9 178.9 178.9 179.0 179.0

GW06 176.2 176.2 176.1 176.2 176.2 176.2

GW08 177.5 177.6 177.4 177.6 177.5 177.5

WRK301 178.2 178.2 178.2 178.2 178.2 178.2

WRK302 176.8 176.7 176.8 176.7 176.8 176.8

WRK303 179.8 179.9 179.9 179.9 179.9 179.9

WRK304 180.4 180.5 180.5 180.4 180.4 180.4

BORES DOWN-GRADIENT OF PIT 23 (IN PREDICTED FLOW PLATH)

BW05 147.4 * * * * *

WRK300 175.1 175.1 175.1 175.2 175.2 175.2

BW36A 174.5 174.4 174.6 174.4 174.5 174.5

GW01 173.5 173.5 173.4 173.4 173.4 173.5

GW02 170.8 170.8 170.7 170.9 170.8 170.8

GW03 162.0 162.1 162.0 162.1 162.0 162.0

GW04A GW04A newly installed Nov 2020 177.0 177.0

BORES CROSS GRADIENT TO PIT 23 FLOW PATH BW28A 152.5 152.5 * * * *

BW45B 177.4 177.4 177.4 177.3 177.4 177.4

GW04 178.1 178.2 178.1 178.2 178.3 178.3

GW07 172.5 172.5 172.5 172.5 172.5 172.5

BORES REPRESENTATIVE OF BACKGROUND IWB2 179.7 179.9 179.7 179.7 179.8 179.7

IWB6 176.9 177.0 176.7 176.8 176.4 176.5

BW53 ("Puls") 175.8 176.3 176.2 176.3 176.2 176.3

Notes

• bores are listed according to their position relative to the Pit 23 groundwater flow path

• bores down-gradient (on predicted flow path) are listed in order of their position along the path of flow

• dates marked with an asterisk (*) indicates no scheduled sampling required



14

Figure 4: Groundwater elevation (mAHD) – bores in predicted flow path

Figure 5: Groundwater elevation (mAHD) – bores up-gradient of Pit 23



15

Figure 6: Groundwater elevation (mAHD) – cross-gradient and background bores



16

4.1.3 Groundwater quality

4.1.3.1 Ionic balance ratios

Per Section 7.9.2 of the current endorsed EMP (Revision 4, July 2017) chloride:sulfate (CL:SO4) and sodium:calcium (Na:Ca) ratios in groundwater are assessed from results obtained during scheduled and/or follow-up groundwater sampling events. Per the EMP, a consecutive reduction in either ratio of >10% applies as a potential indicator of seepage from Pit 23 having arrived in a bore and is a trigger for further investigation. Per the EMP, further investigation would include:

• comparing the timing of the consecutive >10% reduction in ionic ratios with the hydrogeological model predictions;

• comparing the timing of the ionic balance trigger with other analytes (e.g. radionuclides, heavy metals) to identify any corresponding exceedances in those analytes in the same rounds of sampling;

• where such a correlation exists completing a detailed investigation of cause and impact, including possible reviews of hydrogeological or solute transport models.

Calculated Cl:SO4 and Na:Ca for the reporting period are given in Table 3. As above, this includes ratios as determined from the results of scheduled and follow-up sampling.

Reductions of >10% in either of the ionic ratios in consecutive and/or follow-up sampling events occurred at three bores (WRK304, BW36A and GW04) during the reporting period one of which (BW36A) is located down-gradient to Pit 23 however there were no corresponding exceedences for other analytes in bore BW36A or WRK304.

As detailed further in Section 4.1.3.3, the ionic balance trigger for GW04 corresponded with elevated Selenium results, however, these results are below the upper trigger limit based on background values which have naturally elevated concentrations at GW04 and are above the standard SEPP WoV objectives. These observations are not considered to be associated with Pit 23.

Table 3: Groundwater monitoring locations – ionic ratio balance results

Bore ID Date Cl

(mg/L) SO4

(mg/L) CL:SO4 (Ratio)

% Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (Ratio)

% Red.

Repeated ratio

exceedance?


GW05

28/11/2018 3100 560 5.5 I.D. 1800 170 10.6 I.D. 15/01/2019 3800 790 4.8 13% 2200 200 11 -4% 19/02/2019 3700 740 5 10% 2000 180 11.1 -5%

8/07/2019 3100 660 4.7 2% 1900 140 13.6 -23% 15/01/2020 2600 640 4 14% 1700 81 20.9 -55%

20/02/2020 2800 620 4.5 4% 1900 87 21.8 -61%

9/07/2020 2700 640 4.2 -4% 1900 84 22.6 -8%

17/08/2020 2600 590 4.4 -8% 1700 95 17.9 15%

GW06

12/06/2018 6600 1500 4.4 I.D. 3400 660 5.2 I.D. 14/01/2019 6700 1700 3.9 10% 3400 630 5.4 -5% 21/03/2019 6800 1600 4.3 -8% 3400 620 5.5 -2% 17/04/2019 7000 1500 4.7 -10% 3500 640 5.5 0% 22/05/2019 6800 1400 4.9 -4% 3400 670 5.1 7% 18/06/2019 6800 1500 4.5 7% 3400 580 5.9 -16%



17

Bore ID Date Cl

(mg/L) SO4


% Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (Ratio)

% Red.

Repeated ratio

exceedance?

4/07/2019 6800 1500 4.5 0% 3500 610 5.7 2% 22/01/2020 6000 1600 3.8 17% 3400 610 5.6 3%

24/02/2020 6700 1500 4.5 1% 3400 600 5.7 1%

6/07/2020 6400 1500 4.3 -14% 3500 590 5.9 -6%

GW08

29/11/2018 5300 1100 4.8 I.D. 2800 390 7.2 I.D. 14/01/2019 6600 1300 5.1 -5% 3200 540 5.9 17% 18/02/2019 6700 1400 4.8 1% 3300 540 6.1 15% Yes (Na:Ca)

10/07/2019 6700 1200 5.6 -10% 3600 550 6.5 -10% 20/01/2020 6500 1300 5 10% 3400 520 6.5 0%

25/02/2020 6700 1300 5.2 8% 3600 540 6.7 -2%

5/05/2020 6800 1300 5.2 6% 3800 400 9.5 -45%

6/07/2020 6600 1300 5.1 -2% 3400 530 6.4 2%

WRK301

26/07/2017 3100 640 4.8 I.D. 1600 240 6.7 I.D. 11/01/2018 3100 650 4.8 2% 1700 250 6.8 -2% 10/07/2018 3100 480 6.5 -35% 1700 260 6.5 4% 21/01/2019 3400 670 5.1 21% 1700 290 5.9 10% 18/02/2019 3400 690 4.9 24% 1700 260 6.5 -12% Yes (CL:SO4)

15/07/2019 3200 570 5.6 -11% 1700 230 7.4 -26% 22/01/2020 3100 600 5.2 8% 1700 260 6.5 12%

25/02/2020 3200 600 5.3 5% 1800 270 6.7 10%

13/07/2020 3200 600 5.3 -3% 1800 260 6.9 -6%

WRK302

10/07/2018 6500 1300 5 -15% 3500 520 6.7 8% 14/01/2019 6500 1500 4.3 13% 3500 490 7.1 -6% 18/02/2019 6700 1400 4.8 4% 3300 540 6.1 9% 21/03/2019 6600 1500 4.4 12% 3500 490 7.1 -6% 17/04/2019 6600 1300 5.1 -2% 3400 530 6.4 5% 22/05/2019 6700 1300 5.2 -3% 3500 510 6.9 -2%

4/07/2019 6400 1400 4.6 -5% 3600 460 7.8 -10% 1/08/2019 6500 1400 4.6 -7% 3400 480 7.1 1%

20/01/2020 6200 1500 4.1 10% 3500 460 7.6 3%

6/07/2020 6200 1400 4.4 -7% 3400 520 6.5 14%

3/09/2020 6300 1400 4.5 -9% 3300 430 7.7 -1%

WRK303

25/07/2017 2100 570 3.7 I.D. 1200 93 12.9 I.D. 11/01/2018 2100 550 3.8 -4% 1300 97 13.4 -4% 10/07/2018 2400 570 4.2 -10% 1400 110 12.7 5% 14/01/2019 2500 620 4 4% 1500 130 11.5 9% 15/07/2019 2700 570 4.7 -17% 1600 120 13.3 -16% 23/01/2020 2700 560 4.8 -2% 1800 140 12.9 4% 13/07/2020 2800 580 4.8 0% 1700 150 11.3 12%



18

Bore ID Date Cl

(mg/L) SO4


% Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (Ratio)

% Red.

Repeated ratio

exceedance?

19/08/2020 2900 590 4.9 -2% 1600 120 13.3 -4%

WRK304

10/07/2018 2200 640 3.4 0% 1400 93 15.1 -3% 14/01/2019 2200 680 3.2 6% 1400 87 16.1 -7% 15/07/2019 2400 640 3.8 -16% 1500 94 16 1% 22/01/2020 2500 700 3.6 5% 1700 100 17 -7%

5/03/2020 2500 640 3.9 -4% 1600 110 14.5 9%

14/07/2020 2400 650 3.7 -3% 1600 110 14.5 14%

19/08/2020 2500 640 3.9 -9% 1400 110 12.7 25% Yes (Na:Ca)

BORES DOWN-GRADIENT OF PIT 23

BW05

18/10/2018 8800 800 11 23% 4900 260 18.8 -11% 17/01/2019 8300 960 8.6 17% 4500 290 15.5 35% 20/03/2019 8400 890 9.4 10% 4700 260 18.1 24% Yes (Na:Ca)

3/07/2019 8300 860 9.7 -12% 4600 240 19.2 -24% 13/01/2020 7800 870 9 7% 4700 240 19.6 -2%

8/07/2020 7900 880 9 0% 4700 260 18.1 8%

BW36A

12/07/2017 2200 420 5.2 I.D. 1300 74 17.6 I.D. 10/01/2018 2000 360 5.6 -6% 1200 82 14.6 17%

6/03/2018 1900 360 5.3 5% 1100 61 18 -3% Bore blocked - replaced with BW36A in Oct 2019

11/12/2019 1200 160 7.5 I.D. 760 76 10 I.D.

16/01/2020 1200 90 13.33 -78% 770 69 11.2 -12%

7/07/2020 1900 240 7.9 41% 1200 120 10 10%

17/08/2020 2100 220 9.5 28% 1300 110 11.8 -6% Yes (Cl:SO4)

GW01

7/06/2018 930 110 8.5 I.D. 490 82 6 I.D. 15/01/2019 3400 400 8.5 -1% 1800 65 27.7 -363% 20/03/2019 3500 420 8.3 2% 2000 68 29.4 -6% 15/04/2019 3700 370 10 -18% 1900 75 25.3 9% 14/05/2019 3400 360 9.4 -11% 2100 64 32.8 -18% 18/06/2019 3400 420 8.1 5% 1800 56 32.1 -16%

8/07/2019 3400 400 8.5 0% 1900 58 32.8 -18% 15/01/2020 3500 470 7.4 12% 1900 92 20.7 37%

20/02/2020 3400 450 7.6 11% 1900 73 26 21% Yes (Both)

7/07/2020 3300 550 6.6 11% 2000 82 24.4 -18% 10/08/2020 3400 440 7.7 -4% 1800 78 23.1 -12%

GW02

28/11/2018 2100 410 5.1 I.D. 1300 38 34.2 I.D. 15/01/2019 2000 330 6.1 -18% 1200 26 46.2 -35% 10/07/2019 2300 330 7 -15% 1300 21 61.9 -34% 14/01/2020 2100 340 6.2 11% 1200 19 63.2 -2%

3/03/2020 2000 290 6.9 1% 1200 17 70.6 -14%



19

Bore ID Date Cl

(mg/L) SO4


% Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (Ratio)

% Red.

Repeated ratio

exceedance?

2/07/2020 2100 420 5 19% 1200 21 57.1 10%

10/08/2020 2100 370 5.7 8% 1200 19 63.2 0%

GW03

28/11/2018 2900 510 5.7 I.D. 1800 190 9.5 I.D. 15/01/2019 3100 590 5.3 8% 1900 270 7 26% 19/02/2019 3500 630 5.6 -6% 1800 180 10 -6% 10/07/2019 3400 540 6.3 -20% 1900 170 11.2 -59% 14/01/2020 3300 550 6 5% 1800 160 11.3 -1%

2/07/2020 3300 570 5.8 4% 1900 170 11.2 1%

14/01/2021 3300 630 5.2 10% 2000 180 11.1 1%

GW04A New bore GW04A installed in Oct 2020

30/11/2020 2300 360 6.4 I.D. 1300 120 10.8 I.D.

WRK300

10/01/2018 1700 320 5.3 6% 1000 150 6.7 13% 6/03/2018 1700 330 5.2 3% 920 130 7.1 8%

17/07/2018 1600 290 5.5 -7% 880 140 6.3 11% 18/10/2018 1700 310 5.5 -3% 910 130 7 -5% 21/01/2019 1800 300 6 -9% 910 150 6.1 3% 18/02/2019 1700 330 5.2 7% 910 130 7 -11% 21/03/2019 1800 310 5.8 -5% 1000 180 5.6 12% 17/04/2019 1800 290 6.2 -13% 970 150 6.5 -3% 16/07/2019 1700 300 5.7 6% 990 130 7.6 -26% 16/01/2020 1700 310 5.5 3% 1100 150 7.3 4%

13/07/2020 1700 320 5.3 3% 930 140 6.6 9%

BORES CROSS-GRADIENT OF PIT 23

BW28A *

20/08/2018 7200 870 8.3 -14% 3600 510 7.1 -7% 17/01/2019 7100 1000 7.1 9% 3500 540 6.5 8% 18/02/2019 7200 1100 6.5 16% 3400 490 6.9 -7%

3/07/2019 7100 920 7.7 -9% 3600 500 7.2 -11% 13/01/2020 6900 960 7.2 7% 3400 460 7.4 -3%

26/02/2020 7000 850 8.2 -7% 3600 490 7.3 -2%

8/07/2020 7100 920 7.7 -7% 3500 500 7 5%

10/08/2020 7100 870 8.2 -14% 3200 480 6.7 10%

BW45B

29/11/2018 4800 840 5.7 I.D. 2500 290 8.6 I.D. 17/01/2019 5100 960 5.3 7% 2500 320 7.8 9%

6/03/2019 5100 910 5.6 2% 2500 310 8.1 6% 20/03/2019 5300 960 5.5 3% 2700 320 8.4 2% 15/04/2019 5400 810 6.7 -17% 2600 300 8.7 -1% 14/05/2019 5100 870 5.9 -3% 2900 320 9.1 -5% 18/06/2019 5300 860 6.2 -8% 2700 290 9.3 -8%

8/07/2019 5000 860 5.8 -9% 2800 310 9 -16%



20

Bore ID Date Cl

(mg/L) SO4


% Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (Ratio)

% Red.

Repeated ratio

exceedance?

14/08/2019 4900 860 5.7 -7% 2600 320 8.1 -4%

15/01/2020 4900 920 5.3 8% 2800 320 8.8 -8%

26/02/2020 5100 810 6.3 -8% 2700 300 9 -11%

7/07/2020 5200 900 5.8 -8% 2900 330 8.8 0%

19/08/2020 5100 810 6.3 -18% 2600 310 8.4 4%

GW04 *

28/11/2018 2700 690 3.9 I.D. 1700 120 14.2 I.D.

15/01/2019 2800 720 3.9 1% 1900 110 17.3 -22%

8/07/2019 2800 640 4.4 -13% 1700 120 14.2 18%

1/08/2019 3000 570 5.3 -35% 1600 140 11.4 34% Yes (Na:Ca)

12/09/2019 2900 680 4.3 -10% 1700 130 13.1 24% Yes (Na:Ca)

15/01/2020 2900 520 5.6 -27% 1600 140 11.4 19%

20/02/2020 2800 540 5.2 -19% 1700 130 13.1 8%

9/07/2020 2800 620 4.5 19% 1700 130 13.1 -14%

10/08/2020 2800 600 4.7 16% 1600 120 13.3 -17% Yes (Cl:SO4)

15/10/2020 2800 670 4.2 25% 1600 130 12.3 -8% Yes (Cl:SO4)

GW07

7/06/2018 5500 890 6.18 I.D. 3000 460 6.522 I.D. 17/01/2019 5700 1100 5.18 16% 2900 560 5.179 21% 19/02/2019 5700 1000 5.7 8% 2800 410 6.829 -5% 21/03/2019 5900 990 5.96 4% 3100 440 7.045 -8%

3/07/2019 5800 880 6.59 -27% 3100 390 7.949 -53% 9/01/2020 5700 1000 5.7 14% 3100 400 7.8 3%

26/02/2020 5600 890 6.3 5% 3100 390 7.9 0%

2/07/2020 5600 940 6 -5% 3100 390 7.9 -3%


IWB2

18/10/2018 1200 160 7.5 6% 670 11 60.9 -7% 10/01/2019 1200 160 7.5 0% 660 11 60 7% 11/07/2019 1200 170 7.1 6% 650 9.2 70.7 -18% 14/01/2020 1200 160 7.5 -6% 670 9.7 69.1 2%

8/07/2020 1100 150 7.3 2% 610 9.5 64.2 7%

IWB6

3/07/2018 350 200 1.8 3% 300 6.7 44.8 -5% 10/01/2019 360 220 1.6 6% 290 6.3 46 -3% 11/07/2019 350 190 1.8 -13% 300 6 50 -9% 14/01/2020 330 250 1.3 28% 340 7.2 47.2 6%

20/02/2020 340 190 1.8 3% 310 6.3 49.2 2%

8/07/2020 350 200 1.8 -33% 310 5.9 52.5 -11%

BW53(Puls)

3/07/2018 790 270 2.9 -22% 530 34 15.6 -173% 10/01/2019 570 230 2.5 15% 350 37 9.5 39% 19/02/2019 860 330 2.6 11% 520 43 12.1 22% Yes (Both)

10/07/2019 840 310 2.7 -9% 530 29 18.3 -93%



21

Bore ID Date Cl

(mg/L) SO4


% Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (Ratio)

% Red.

Repeated ratio

exceedance?

13/01/2020 750 310 2.4 11% 500 29 17.2 6%

26/02/2020 770 310 2.5 8% 520 31 16.8 8%

9/07/2020 720 340 2.1 12% 490 25 19.6 -14%

17/08/2020 650 270 2.4 0% 460 27 17 1%

NOTES

• Calculated ratios in green represent values that increase following an initial “>10%” reduction (i.e. no consecutive >10% reduction)

• Calculated ratios in red represent values above the “>10%” reduction threshold (initial identified exceedance).

• Calculated ratios in red highlight represent a confirmed “>10%” reduction in consecutive or follow-up samples

• I.D. = insufficient data to allow calculation of ionic ratio (only one data-point available) • GW04 has previously been incorrectly referenced as being down gradient of Pit 23. Groundwater modelling and particle tracking per EMM (2019) indicate that GW04 is cross-gradient to the predicted groundwater flow path from Pit 23. • BW28A is incorrectly referenced in the EMP (Revision 4) as being down-gradient of Pit 23. Groundwater modelling and particle tracking per CDM Smith (2014) and EMM (2019) indicate that BW28A is cross-gradient to the predicted groundwater flow path from Pit 23.

4.1.3.2 Radionuclide concentrations

In accordance with Section 7.6.7 of the EMP, biannual groundwater samples obtained from the monitoring locations are subjected to in-field and laboratory analysis for a suite of target parameters, which includes target radionuclides (Thorium, Uranium, Radium-226, Radium-228 and Uranium-238).

Radionuclide concentrations determined during both scheduled and follow-up sampling are presented in Table 4. Ionic balance ratios are also shown to identify any potential correlation with seepage from Pit 23. In summary:

• elevated results for Uranium-238 (U-238) were observed in the reporting period at bores GW03 (Down-gradient) and GW06 (Up-gradient). Follow up sampling at GW03 show the result of <0.025Bq/L returning to historical values, follow up results for GW06 are pending at the time of report preparation;

• an elevated Radium 228 (Ra-228) result was observed at bore BW45B (Cross-gradient) but is within historical values that are naturally elevated; and

• ionic balance ratios showed frequent fluctuation spatially and temporally, and between samples obtained over relatively short time periods, with no correlation to radionuclide concentrations. This suggests that the measured radionuclide concentrations and ‘exceedances’ are the product of natural variation, consistent with the findings of previous groundwater studies for the greater Douglas site (Jacobs 2014; CDM Smith 2014; EMM 2018).

The long-term trends in Ra-228 and U-238 concentrations verses ionic balance ratios are shown in Figure 7 – Figure 22. Consistent with the above summary, there is no evident correlation between elevated radionuclide concentrations and fluctuation or declining trends in Cl:SO4 or Na:Ca ratios.

It is recognised that this ionic balance ratio ‘percentage-reduction’ approach to trigger the completion of a groundwater investigation in the current endorsed EMP (Rev 4, July 2017) was based on limited available baseline data at the time of EMP development. This method is thus conservative and overly sensitive to natural variation and is likely to result in ‘false flag’ exceedances, as demonstrated in the McGlashin Swamp Seepage Exceedances Assessment completed by EMM during the 2018 reporting period (EMM, 2018). That is, the current approach does not consider trend-based change



22

in groundwater chemistry that accounts for seasonality or other influences on groundwater chemistry over a sufficient period of time. Revised site-specific trigger levels for groundwater quality, developed using the now expanded monitoring dataset and applying a trend-based trigger approach across all target analytes per the ANZECC/ARCMANZ (2000) guidelines, will therefore be implemented in the next revision of the EMP (Revision 5.1).



23

Table 4: Groundwater radionuclide concentrations vs. ionic balance ratios, H2 2020

Bore ID Date Thorium Uranium U-238 Ra226 Ra228 CL:SO4 Na:Ca

Groundwater Travel Time

(Years) *

(mg/L) (mg/L) (Bq/L) (Bq/L) (Bq/L) Ratio % Red. Ratio % Red.

Precautionary trigger n/a 0.17 0.17 4.3 1.7 n/a n/a n/a n/a

Upper trigger n/a 0.2 0.2 5 2 n/a n/a n/a n/a


GW05

15/11/2018 <0.002 <0.002 <0.025 0.05 0.12 5.5 I.D. 10.6 I.D.

N/A –

bores are up-gradient of Pit

23

Cl:SO4 and Na:Ca ratios

shown to demonstrate

natural variation only

15/01/2019 <0.002 <0.002 <0.025 <0.05 0.09 4.8 13% 11 -4%

19/02/2019 <0.002 <0.002 <0.025 <0.05 <0.08 5 -10% 11.1 -5%

8/07/2019 <0.002 0.001 <0.025 0.02 <0.08 4.7 2% 13.6 -23%

15/01/2020 <0.002 <0.001 <0.025 0.03 0.13 4.1 14% 21.0 -55%

20/02/2020 <0.002 <0.001 <0.025 0.04 0.1 4.5 4% 21.8 -61%

9/07/2020 <0.002 <0.001 <0.025 0.04 0.11 4.2 -4% 22.6 -8%

17/08/2020 <0.002 <0.001 <0.025 0.07 0.16 4.4 -8% 17.9 15%

GW06

12/06/2018 <0.002 0.072 0.037 0.11 0.14 4.4 I.D. 5.1 I.D.

14/01/2019 <0.002 0.105 1.3 0.05 0.22 3.9 10% 5.4 -5%

21/03/2019 <0.002 0.071 0.877 <0.05 0.09 4.2 -8% 5.5 -2%

17/04/2019 <0.002 0.089 1.1 0.06 0.19 4.7 -10% 5.5 0%

22/05/2019 <0.002 0.079 0.975 0.04 0.14 4.9 -4% 5.1 7%

18/06/2019 <0.002 0.003 <0.025 0.04 0.2 4.5 7% 5.9 -16%

4/07/2019 <0.002 0.072 0.889 0.06 0.17 4.5 0% 5.7 2%

22/01/2020 <0.002 0.003 0.025 0.04 0.21 3.8 17% 5.6 3%

24/02/2020 <0.002 0.003 1.33 0.16 0.08 4.5 1% 5.7 1%

6/07/2020 <0.002 0.003 0.667 0.05 0.19 4.3 -14% 5.9 -6%

20/01/2021 <0.002 0.003 Awaiting results 4.1 3% 6.0 -1%

GW08 29/11/2018 <0.002 0.002 0.025 0.09 0.24 4.8 I.D. 7.2 I.D.

14/01/2019 <0.002 0.064 0.79 <0.05 <0.08 5.1 -5% 5.9 17%



24



(Years) *




18/02/2019 <0.002 0.009 0.111 0.09 0.12 4.8 1% 6.1 15%

10/07/2019 <0.002 0.024 <0.025 0.04 0.08 5.9 -10% 6.5 -10%

20/01/2020 <0.003 0.001 2.86 0.07 <0.08 5.0 10% 6.5 0%

25/02/2020 <0.004 0.001 1.31 0.07 0.09 5.2 8% 6.7 -2%

5/05/2020 <0.002 <0.001 0.148 0.06 <0.08 5.2 6% 9.5 -45%

6/07/2020 <0.002 0.001 <0.025 0.06 <0.08 5.1 -2% 6.4 2%

WRK301

10/07/2018 <0.002 0.008 0.049 0.14 0.17 6.5 -35% 6.5 4%

21/01/2019 <0.002 0.017 0.21 0.07 0.09 5 21% 5.9 10%

18/02/2019 <0.002 0.005 0.062 0.05 <0.08 4.9 24% 6.5 -12%

15/07/2019 <0.002 0.008 0.037 0.04 0.11 5.6 -11% 7.4 -26%

22/01/2020 0.0024 0.005 0.037 0.06 <0.08 5.2 8% 6.5 12%

25/02/2020 <0.002 0.005 0.395 0.01 <0.08 5.3 5% 6.7 10%

13/07/2020 <0.002 0.006 <0.025 <0.01 <0.08 5.3 -3% 6.9 -4%

WRK302

10/07/2018 <0.002 0.059 0.148 0.19 0.76 5 -15% 6.7 8%

14/01/2019 <0.002 0.048 0.593 0.16 1.01 4.3 13% 7.1 -6%

18/02/2019 <0.002 0.046 0.568 0.31 1.14 4.8 4% 6.1 9%

21/03/2019 <0.002 0.116 1.43 0.27 0.94 4.4 12% 7.1 -6%

17/04/2019 <0.002 0.018 0.222 0.21 1.08 5.1 -2% 6.4 5%

22/05/2019 <0.002 <0.002 <0.025 0.12 0.84 5.1 -3% 6.9 -2%

4/07/2019 <0.002 0.001 0.086 0.24 0.91 4.6 -5% 7.8 -10%

1/08/2019 <0.002 <0.001 0.728 0.22 0.92 4.6 -7% 7.1 1%

20/01/2020 <0.002 <0.001 0.296 0.34 1.02 4.1 10% 7.6 3%

6/07/2020 <0.002 <0.001 0.049 0.18 0.74 4.4 -7% 6.5 14%

3/09/2020 <0.002 <0.001 0.16 0.33 0.91 4.5 -9% 7.7 -1%



25



(Years) *




WRK303

10/07/2018 <0.002 <0.002 <0.025 <0.06 <0.09 4.2 -10% 12.7 5%

14/01/2019 <0.002 <0.002 <0.025 <0.05 <0.08 4 4% 11.5 9%

15/07/2019 <0.002 <0.001 <0.025 0.04 <0.08 4.7 -17% 13.3 -16%

23/01/2020 <0.002 <0.001 <0.025 0.03 <0.08 4.8 -2% 12.9 4%

13/07/2020 <0.002 <0.001 <0.025 0.04 0.09 4.8 0% 11.3 12%

19/08/2020 0.006 0.004 <0.025 0.03 <0.08 4.9 -2% 13.3 -4%

WRK304

10/07/2018 <0.002 <0.002 <0.025 <0.05 <0.08 3.4 0% 15.1 -3%

14/01/2019 <0.002 <0.002 <0.025 <0.05 <0.08 3.2 6% 16.1 -7%

15/07/2019 <0.002 <0.001 <0.025 0.02 <0.08 3.8 -16% 16 1%

22/01/2020 <0.002 <0.001 2.7 <0.01 <0.08 3.6 5% 17 -7%

5/03/2020 <0.002 <0.001 <0.025 <0.01 <0.08 3.9 -4% 14.5 9%

14/07/2020 <0.002 <0.001 <0.025 0.02 <0.08 3.7 -3% 14.5 14%

19/08/2020 0.006 0.004 <0.025 0.01 <0.08 3.9 -9% 12.7 25%

BORES DOWN-GRADIENT OF PIT 23 (IN PREDICTED FLOW PATH)

BW36A

11/12/2019 <0.002 0.002 <0.025 0.07 0.17 7.5 I.D. 10 I.D.

16/01/2020 <0.002 <0.001 <0.025 <0.01 <0.08 13.3 -78% 11.2 -12%

7/07/2020 <0.002 <0.001 <0.025 0.06 0.15 7.9 41% 10.0 10%

17/08/2020 <0.002 <0.001 0.037 0.06 0.2 9.5 28% 11.8 -6%

WRK300

18/10/2018 <0.002 <0.001 N.S. N.S. N.S. 5.5 -3% 7 -5%

36 years

21/01/2019 <0.002 <0.002 <0.025 <0.05 <0.08 6 -9% 6.1 3%

18/02/2019 <0.002 <0.002 <0.025 <0.05 <0.08 5.2 7% 7 -11%

21/03/2019 <0.002 0.002 <0.025 <0.05 <0.08 5.8 -5% 5.6 12%

17/04/2019 <0.002 <0.002 <0.025 0.03 0.09 6.2 -13% 6.5 -3%

16/07/2019 <0.002 <0.002 <0.025 0.03 <0.08 5.7 6% 7.6 -26%



26



(Years) *




16/01/2020 <0.002 0.001 <0.025 0.02 0.08 5.5 3% 7.3 4%

13/07/2020 <0.002 <0.001 <0.025 0.03 <0.08 5.3 3% 6.6 9%

GW01

7/06/2018 <0.002 <0.001 <0.025 <0.05 <0.08 8.4 I.D. 6 I.D.

88 years

15/01/2019 <0.002 <0.001 <0.025 0.48 1.36 8.5 -1% 27.7 -363%

20/03/2019 <0.002 0.001 <0.025 0.48 0.72 8.3 2% 29.4 -6%

15/04/2019 <0.002 <0.001 <0.025 0.4 1.2 10 -18% 25.3 9%

14/05/2019 0.0095 0.009 <0.025 0.47 1.36 9.4 -11% 32.8 -18%

18/06/2019 <0.002 <0.002 <0.025 0.46 1.29 8 5% 32.1 -16%

8/07/2019 <0.002 0.002 <0.025 0.28 0.77 8.5 0% 32.7 -18%

15/01/2020 <0.002 <0.001 <0.025 0.32 0.81 7.4 12% 20.7 37%

20/02/2020 <0.002 <0.001 <0.025 0.32 0.9 7.6 11% 26.0 21%

7/07/2020 <0.002 <0.001 <0.025 0.24 0.72 6.6 11% 24.4 -18%

10/08/2020 <0.002 <0.001 <0.025 0.13 0.42 7.7 -4% 23.1 -12%

GW02

28/11/2018 <0.002 <0.001 <0.025 0.05 0.11 5.1 I.D. 34.2 I.D.

144 years

15/01/2019 <0.002 <0.001 <0.025 0.05 0.15 6 -18% 46.1 -35%

10/07/2019 <0.002 <0.001 0.296 0.1 0.32 7 -15% 61.9 -34%

14/01/2020 <0.002 <0.001 <0.025 0.05 0.14 6.2 11% 63.2 -2%

3/03/2020 0.004 <0.001 <0.025 0.08 0.27 6.9 1% 70.6 -14%

2/07/2020 <0.002 <0.001 <0.025 0.1 0.33 5.0 19% 57.1 10%

10/08/2020 <0.002 <0.001 <0.025 0.09 0.31 5.7 8% 63.2 0%

GW03

28/11/2018 <0.002 <0.002 0.025 0.07 0.16 5.7 I.D. 9.5 I.D.

176 years 15/01/2019 <0.002 <0.002 <0.025 <0.05 <0.08 5.3 8% 7 26%

19/02/2019 <0.002 <0.002 <0.025 <0.05 <0.08 5.6 -6% 10 -6%

10/07/2019 <0.002 <0.001 <0.025 0.01 <0.08 6.3 -20% 11.2 -59%



27



(Years) *




14/01/2020 <0.002 <0.001 <0.025 0.01 <0.08 6 5% 11.3 -1%

2/07/2020 <0.002 <0.001 0.864 0.01 <0.08 5.8 4% 11.2 1%

14/01/2021 0.008 <0.001 <0.025 <0.05 <0.08 5.2 10% 11.1 1%

GW04A New bore installed in Oct 2020

30/11/2020 <0.002 <0.001 <0.025 0.04 0.2 6.4 I.D. 10.8 I.D.

BW05

18/10/2018 <0.002 0.03 <0.025 <0.05 <0.08 11 -23% 18.8 -11%

500+ years

17/01/2019 <0.002 0.004 0.037 <0.05 <0.08 8.6 17% 15.5 35%

20/03/2019 <0.002 0.003 0.049 <0.05 <0.08 9.4 10% 18.1 24%

3/07/2019 <0.002 0.003 <0.025 0.03 <0.08 9.6 -12% 19.2 -24%

13/01/2020 <0.002 0.002 <0.025 <0.01 <0.08 9.0 7% 19.6 -2%

8/07/2020 <0.002 0.004 <0.025 0.03 <0.08 9.0 0% 18.1 8%

BORES CROSS-GRADIENT OF PIT 23

BW28A *

20/08/2018 <0.002 0.005 0.074 0.09 <0.08 8.3 -14% 7 7%

N/A -

Bores not on flow path from

Pit 23

Cl:SO4 and Na:Ca ratios

shown to demonstrate

natural variation only

17/01/2019 <0.002 0.005 1.48 0.13 <0.08 7.1 9% 6.5 2%

18/02/2019 <0.002 0.005 0.173 0.17 <0.08 6.5 16% 6.9 -5%

3/07/2019 <0.002 0.006 0.679 0.13 <0.08 7.7 -9% 7.2 -11%

13/01/2020 <0.002 0.006 2.16 0.1 <0.08 7.2 7% 7.4 -3%

26/02/2020 <0.002 0.007 0.234 0.12 <0.08 8.2 -7% 7.3 -2%

8/07/2020 <0.002 0.007 <0.025 0.11 <0.08 7.7 -7% 7.0 5%

10/08/2020 <0.002 0.007 0.148 0.11 <0.08 8.2 -14% 6.7 10%

BW45B

29/11/2018 <0.002 <0.001 <0.025 0.22 0.86 5.6 I.D. 8.6 I.D.

17/01/2019 <0.002 0.001 <0.025 0.42 2.4 5.3 7% 7.8 9%

6/03/2019 <0.002 0.001 <0.025 0.45 2.6 5.6 2% 8 6%

20/03/2019 <0.002 0.012 0.037 0.83 2.77 5.5 3% 8.4 2%



28



(Years) *




15/04/2019 <0.002 0.005 0.667 0.53 3.08 6.7 -17% 8.7 -1%

14/05/2019 <0.002 0.015 0.099 0.63 2.94 5.9 -3% 9 -5%

18/06/2019 <0.002 0.012 0.222 0.69 3.4 6.2 -8% 9.3 -8%

8/07/2019 <0.002 0.014 0.148 0.72 3.18 5.8 -9% 9 -16%

14/08/2019 <0.002 0.002 0.025 0.52 2.2 5.7 -7% 8.1 -4%

15/01/2020 <0.002 0.006 0.099 0.51 2.81 5.3 8% 8.75 -8%

26/02/2020 <0.002 <0.001 0.086 0.52 2.9 6.3 -8% 9 -11%

7/07/2020 <0.002 0.017 0.198 0.69 3.02 5.8 -8% 8.8 0%

19/08/2020 0.006 0.01 <0.025 0.58 2.36 6.3 -18% 8.4 4%

GW04

28/11/2018 <0.002 <0.002 <0.025 0.07 0.15 3.9 I.D. 14.2 I.D.

15/01/2019 <0.002 <0.002 <0.025 0.09 0.19 3.9 1% 17.3 -22%

8/07/2019 <0.002 <0.001 <0.002 0.1 0.2 4.4 -13% 14.2 18%

1/08/2019 <0.002 <0.001 <0.025 0.13 0.24 5.3 -35% 11.4 34%

12/09/2019 <0.002 <0.001 <0.025 0.12 0.24 4.3 -10% 13.1 24%

15/01/2020 <0.002 <0.001 <0.025 0.1 0.25 5.6 -27% 11.4 19%

20/02/2020 <0.002 <0.001 <0.025 0.14 0.26 5.2 -19% 13.1 8%

9/07/2020 <0.002 <0.001 <0.025 0.12 0.24 4.5 19% 13.1 -14%

10/08/2020 <0.002 <0.001 <0.025 0.12 0.25 4.7 16% 13.3 -17%

15/10/2020 <0.002 <0.001 <0.025 0.12 0.25 4.2 25% 12.3 -8%

GW07

7/06/2018 <0.002 0.001 <0.025 <0.05 <0.08 6.2 I.D. 6.5 I.D.

17/01/2019 <0.002 <0.001 0.296 0.06 0.32 5.2 16% 5.2 21%

19/02/2019 <0.002 <0.001 0.556 <0.05 0.28 5.7 8% 6.8 -5%

21/03/2019 <0.002 <0.001 <0.025 <0.05 0.12 6 4% 7 -8%

3/07/2019 <0.002 <0.001 0.259 0.06 0.2 6.6 -27% 7.9 -53%



29



(Years) *




9/01/2020 <0.002 <0.001 2.04 0.08 0.19 5.7 14% 7.8 3%

26/02/2020 <0.002 <0.001 0.037 0.07 0.24 6.3 5% 7.9 0%

2/07/2020 <0.002 <0.001 0.123 0.07 0.34 6.0 -5% 7.9 -3%


IWB2

18/10/2018 <0.002 <0.001 <0.025 0.03 <0.08 7.5 6% 60.9 -7%

N/A - Bores not on flow path from Pit 23

10/01/2019 <0.002 <0.001 <0.025 <0.05 0.08 7.5 0% 60 7%

11/07/2019 <0.002 <0.001 <0.025 0.03 <0.08 7 6% 70.6 -18%

14/01/2020 <0.002 <0.001 <0.025 0.06 0.12 7.5 -6% 69.1 2%

8/07/2020 <0.002 <0.001 <0.025 0.01 <0.08 7.3 2% 64.2 7%

IWB6

3/07/2018 <0.002 <0.001 0.037 <0.05 <0.08 1.7 3% 44.8 -5%

10/01/2019 <0.002 <0.001 <0.025 <0.05 <0.08 1.7 6% 46 -3%

11/07/2019 <0.002 <0.001 <0.025 0.02 <0.08 1.8 -13% 50 -9%

14/01/2020 <0.002 <0.001 <0.025 0.03 <0.08 1.3 28% 47.2 6%

20/02/2020 <0.002 <0.001 <0.025 0.02 <0.08 1.8 3% 49.2 2%

8/07/2020 <0.002 <0.001 <0.025 0.02 <0.08 1.8 -33% 52.5 -11%

BW53 (“Puls”)

3/07/2018 <0.002 <0.001 <0.025 <0.05 0.11 2.9 -22% 15.6 -173%

10/01/2019 <0.002 <0.001 <0.025 <0.05 0.19 2.5 15% 9.6 39%

19/02/2019 <0.002 <0.001 <0.025 <0.05 0.16 2.6 11% 12.1 22%

10/07/2019 <0.002 <0.001 <0.025 0.04 0.11 2.7 -9% 18.3 -93%

13/01/2020 <0.002 <0.002 <0.025 0.04 0.12 2.4 11% 17.2 6%

26/02/2020 <0.002 <0.002 <0.025 0.03 0.17 2.5 8% 16.8 8%

9/07/2020 <0.002 <0.001 <0.025 0.04 0.1 2.1 12% 19.6 -14%

17/08/2020 <0.002 <0.001 0.037 0.03 0.1 2.4 0% 17.0 1%

NOTES



30



(Years) *




• < = results below the laboratory limit of detection. These are treated as a negative (-) concentrations in figures presented in this report to allow graphical representation.

• Results highlighted in orange indicate an exceedance of the precautionary trigger

• Results highlighted in pink indicate an exceedance of the upper trigger




• N.S. = not sampled / analysed

• I.D. = insufficient data to allow calculation of ionic ratio (only one data-point available)

• Groundwater arrival year is based on groundwater model predictions (particle tracking) per CDM Smith (2015) and EMM (2019), and assumes that groundwater flow originates from Pit 23 immediately on commencement of the first by-product disposal to into Pit 23 (December 2011).

• GW04 is incorrectly referenced in the EMP (Revision 4) as being down gradient of Pit 23. Groundwater modelling and particle tracking per EMM (2019) indicate that GW04 is cross-gradient to the predicted groundwater flow path from Pit 23.

• BW28A is incorrectly referenced in the EMP (Revision 4) as being down-gradient of Pit 23. Groundwater modelling and particle tracking per CDM Smith (2014) and EMM (2019) indicate that BW28A is cross-gradient to the predicted groundwater flow path from Pit 23.



31

Figure 7: U-238 and ionic balance trends – up-gradient bores (1 of 2)

Figure 8: U-238 and ionic balance trends – up-gradient bores (2 of 2)

Figure 9: Ra-228 and ionic balance trends – up-gradient bores (1 of 2)s Figure 10: Ra-228 and ionic balance trends – up-gradient bores (2 of 2)



32

Figure 11: U-238 and ionic balance trends – down-gradient bores (1 of 2)

Figure 12: U-238 and ionic balance trends – down-gradient bores (2 of 2)

Figure 13: Ra-228 and ionic balance trends – down-gradient bores (1 of 2) Figure 14: Ra-228 and ionic balance trends – down-gradient bores (2 of 2)



33

Figure 15: U-238 and ionic balance trends – cross-gradient bores (1 of 2)

Figure 16: U-238 and ionic balance trends – cross-gradient bores (2 of 2)

Figure 17: Ra-228 and ionic balance trends – cross-gradient bores (1 of 2) Figure 18: Ra-228 and ionic balance trends – cross-gradient bores (2 of 2)



34

Figure 19: U-238 and ionic balance trends – bores representing background (1 of 2)

Figure 20: U-238 and ionic balance trends – bores representing background (2 of 2)

Figure 21: Ra-228 and ionic balance trends – bores representing background (1 of 2) Figure 22: Ra-228 and ionic balance trends – bores representing background (2 of 2)



35

4.1.3.3 Other analytes

In accordance with Section 7.6.7 of the EMP, biannual groundwater samples obtained from the monitoring locations are subjected to in-field and laboratory analysis for a suite of target parameters.

Analyte concentrations above trigger limits that coincided with ionic balance ratio triggers are presented in Table 5 & Table 6 and Figure 23. In summary:

• analysis recorded an elevated selenium result at GW04 during August and October as part of the follow up sampling required due to an ionic balance trigger that occurred during July’s scheduled sampling;

• sufficient data is available to determine background concentrations for GW04, which is determined as the 75th percentile value based on the mean and standard deviation of the available data. For GW04, the 75th percentile (background) value is higher than the standard SEPP WoV objectives and therefore applies as the upper trigger (background value); and

• all results are consistent with historical values and do not indicate seepage from Pit 23.

Table 5: Groundwater quality exceedances vs ionic balance ratios, H2 2020

Bore ID Date Se CL:SO4 Na:Ca

(mg/L) Ratio % Red. Ratio % Red. Precautionary trigger 0.017 n/a n/a n/a n/a

Upper trigger 0.02 n/a n/a n/a n/a

GW04 Cross

Gradient

9/07/2020 0.031 4.5 19% 13.1 -14%

10/08/2020 0.029 4.7 16% 13.3 -17%

2 sample av 0.030

10/08/2020 0.029 4.7 16% 13.3 -17%

15/10/2020 0.026 4.2 25% 12.3 -8%

2 sample av 0.028

Table 6:Selenium groundwater trigger levels for GW04, H2 2020

GW04 Se

(mg/L) AVG

Std Dev

Background (av+2SD)

Prec Trigger

(85% of b/g)

Upper Trigger

Ion. Bal. Rep. Exceedance?

2-sample

AVG Comment

28/11/2018 0.029 - - - - -

No - min 5 results reqd for statistical analysis

15/01/2019 0.023 0.026 0.004 0.0345 - -

No 0.026 min 5 results reqd for statistical analysis

8/07/2019 0.025 0.026 0.003 0.0318 - -

YES (Na:Ca) 0.024 min 5 results reqd for statistical analysis

1/08/2019 0.024 0.025 0.003 0.0305 - - YES (Na:Ca) 0.0245 min 5 results reqd for statistical analysis

12/09/2019 0.029 0.026 0.003 0.0317 0.0269 0.0317 YES (Na:Ca) 0.0265 Na:Ca Ratio triggered, Se equal to precautionary trigger

15/01/2020 0.022 0.025 0.003 0.0314 0.0267 0.0314 YES (Na:Ca) 0.0255 Na:Ca Ratio triggered, Se below precautionary trigger

20/02/2020 0.022 0.025 0.003 0.0309 0.0263 0.0309 No 0.0220 No ratio triggerred, Se below precautionary trigger

9/07/2020 0.031 0.026 0.004 0.0327 0.0278 0.0327 YES

(Cl:SO4) 0.0265

Se below precautionary trigger

10/08/2020 0.029 0.026 0.004 0.0330 0.0281 0.0330 YES

(Cl:SO4) 0.0300 Se above precautionary trigger,

below upper trigger

15/10/2020 0.026 0.026 0.003 0.0326 0.0277 0.0326 YES

(Cl:SO4) 0.0275

Se below precautionary trigger



36

Figure 23: GW04 - Selenium as compared against ionic balance trends

All groundwater quality monitoring data (laboratory and field data) for the reporting period for all parameters monitored is provided in Appendix B and Appendix C of this report, respectively.

4.2 Surface water quality

4.2.1 Runoff-fed surface water sites

In accordance with Section 8.7.1 of the EMP, surface water samples must be obtained from nominated runoff-fed surface water monitoring points if a discharge of run-off from the disturbed area of Pit 23 and surrounds occurs.

No discharges occurred during the reporting period and subsequently no follow-up monitoring was required.

4.2.2 Groundwater-fed surface water sites

In accordance with Section 8.7.2 of the EMP, quarterly surface water samples obtained from the nominated groundwater-fed surface water monitoring points down-gradient of Pit 23 (i.e. surface water features receiving groundwater base-flow) are analysed for a suite of target parameters to identify the potential expression of Pit 23 groundwater seepage.

Results obtained for specific parameters are summarised in sections 4.2.2.1 - 4.2.2.3 below.

All surface water quality monitoring data for the reporting period and for all parameters monitored (laboratory and field results) is provided in Appendix D and Appendix E of this report.

4.2.2.1 Ionic balance ratios

Assessment of potential Pit 23 seepage and expression into surface waters is based on an analysis of Cl:SO4 and Na:Ca ratios obtained from quarterly monitoring, with a consecutive reduction in either ratio of >10% applied as potential indicator of Pit 23 seepage and expression at surface.

Ionic ratio results for nominated surface water monitoring locations in the H2 2020 reporting period are given in Table 7. The data presented includes results preceding the H2 2020 reporting period to show longer-term trends and to demonstrate the influence of seasonality in both the availability of



37

data (ability to obtain samples) and the influence that this natural variability has on surface water chemistry and hence the calculated ratios. The reliability of ratios calculated from data obtained after a long elapsed period of time (i.e. due to a lack of recent samples), and which suggest a consecutive >10% ratio exceedance, thus need to be interpreted with caution as they are more likely to reflect natural variation than any influence of Pit 23 seepage.

With reference to Table 7, no reductions of >10% exceedances in either one or both ratio’s occurred during the reporting period for surface water sites along the flow path from Pit 23. A reduction of >10% exceedence was observed in Q4 2020 for the Ca:Na ratio at Shaw’s Gully (DUSW22) which is an analogue/reference site and not on the Pit 23 flow path.

Table 7: Surface water monitoring - ionic ratio balance results

Sample Point

Sample Date

CL- (mg/L)

SO4 (mg/L)

CL:SO4 % Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (ratio)

% Red. Repeated

ratio exceedance? (ratio)

GROUNDWATER-FED SITES ALONG FLOW PATH FROM PIT 23

DUSW20 (NW

Drainage Line)

26/06/2017 DRY DRY DRY DRY DRY DRY DRY DRY N/A

12/09/2017 360 61 5.9 I.D. 230 27 8.52 I.D. 11/10/2017 1100 150 7.33 -24% 630 71 8.87 -4% 15/01/2018 DRY DRY DRY DRY DRY DRY DRY DRY N/A



8/08/2018 1100 200 5.5 25% 660 52 12.69 -43% 12/09/2018 DRY DRY DRY DRY DRY DRY DRY DRY N/A




14/08/2019 82 36 2.28 59% 100 9.3 10.75 15%






14/09/2010 42 4 10.5 -4% 46 5.5 8.4 0.2% 8/10/2020 3700 560 6.6 -2% 2100 180 11.7 -0.1%

DUSW24 McGlashin

Swamp)

26/06/2017 530 8 66.3 I.D. 430 87 4.94 I.D. 12/09/2017 500 38 13.2 80% 330 62 5.32 -8% 11/10/2017 530 46 11.5 83% 360 69 5.22 2% 15/01/2018 970 68 14.3 -24% 690 42 16.43 -215% 19/06/2018 2100 57 36.8 -158% 1200 66 18.18 -11% 17/07/2018 2100 69 30.4 17% 1300 65 20 -10% 14/08/2018 1900 72 26.4 13% 1100 63 17.46 13% Yes (CL:SO4)

12/09/2018 2000 89 22.5 15% 1300 71 18.31 -5% Yes (CL:SO4)

17/10/2018 2700 130 20.8 8% 1500 92 16.3 11% 1/11/2018 3100 130 23.8 -15% 1800 100 18 -10%



38

Sample Point

Sample Date

CL- (mg/L)

SO4 (mg/L)

CL:SO4 % Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (ratio)

% Red. Repeated




14/08/2019 3300 820 4.02 81% 1900 270 7.04 57%

16/09/2019 4700 960 4.9 76% 2600 330 7.88 52% Yes (Both)





17/09/2020 4800 900 5.3 -0.3% 2800 340 8.2 -0.2% 13/10/2020 5500 1200 4.6 -0.1% 3000 360 8.3 -0.2%

DUSW5B (White Lake)

26/06/2017 100000 8300 12 I.D. 53000 1700 31.176 I.D. 11/09/2017 3200 390 8.2 32% 1800 130 13.846 56% 11/10/2017 44000 5200 8.5 30% 23000 1400 16.429 47% Yes (Both)



17/07/2018 100000 7000 14.3 -69% 59000 1600 36.88 -124% 17/10/2018 120000 9700 12.4 13% 65000 2000 32.5 12% 1/11/2018 170000 9400 18.1 -27% 100000 1200 83.33 -126% 8/01/2019 DRY DRY DRY DRY DRY DRY DRY DRY N/A









17/09/2020 86000 6800 12.6 0.3% 56000 1700 32.9 1%

13/10/2020 94000 7500 12.5 0.1% 52000 1700 30.6 0.1%

GROUNDWATER-FED ANALOGUE / REFERENCE SITES (NOT ON PIT 23 FLOW PATH)

DUSW22 (Shaw's Gully)

26/06/2017 DNS DNS DNS DNS DNS DNS DNS DNS N/A

23/08/2017 190 35 5.4 I.D. 110 14 7.86 I.D. 11/10/2017 1700 180 9.4 -74% 840 91 9.23 -17% 15/01/2018 470 17 27.6 -193% 240 27 8.89 4% 19/06/2018 3600 410 8.8 68% 1800 160 11.25 -27% 17/07/2018 3200 330 9.7 -10% 1700 140 12.14 -8% 17/10/2018 2800 280 10 -3% 1400 120 11.67 4% 8/01/2019 DRY DRY DRY DRY DRY DRY DRY DRY N/A




39

Sample Point

Sample Date

CL- (mg/L)

SO4 (mg/L)

CL:SO4 % Red.

Na (mg/L)

Ca (mg/L)

Na:Ca (ratio)

% Red. Repeated


2/07/2019 2100 340 6.18 38% 1400 120 11.67 0%

1/08/2019 970 160 6.06 39% 550 44 12.5 -&% Yes (Cl:SO4)

24/10/2019 740 140 5.29 14% 410 34 12.06 -3% Yes (Cl:SO4)



15/06/2020 3200 360 8.9 -68% 1700 150 11.3 6%

15/07/2020 3000 290 10.3 -16% 1600 140 11.4 -1%

6/10/2020 2300 230 10.0 3% 1100 120 9.2 20%

DUSW14 (Costello's

Creek)


13/09/2017 190 34 5.59 I.D. 130 13 10 I.D. 11/10/2017 1400 260 5.38 4% 850 49 17.35 -73% 15/01/2018 DRY DRY DRY DRY DRY DRY DRY DRY N/A

19/06/2018 1800 310 5.81 -8% 1100 67 16.42 5% 17/07/2018 1800 330 5.45 6% 1200 58 20.69 -26% 17/10/2018 1600 280 5.71 -5% 1000 50 20 3% 8/01/2019 2400 350 6.86 -20% 1400 50 28 -40% 9/04/2019 2200 240 9.17 -34% 1300 49 26.53 5% 2/07/2019 2200 360 6.11 33% 1300 74 17.57 34%

1/08/2019 1900 340 5.59 39% 1200 44 27.27 -3% Yes (Cl:SO4)

24/10/2019 1800 290 6.21 -2% 1200 46 26.09 -48%


1/04/2020 2200 240 9.2 -0.5% 1300 45 28.9 -0.1%

15/07/2020 2100 220 9.5 -0.04% 1400 74 18.9 0.4%

6/10/2020 1400 240 5.8 0.4% 900 54 16.7 0.1%

NOTES




• I.D. = insufficient data to allow calculation of ionic ratio (only one data-point available)

4.2.2.2 Radionuclide concentrations

Section 7.9.1 of the EMP prescribes the locations for surface water monitoring and the monitoring frequency, as summarised in Table 8. These locations are subject to sampling and laboratory analysis for radionuclides (Thorium, Uranium, Radium-226, Radium-228 and Uranium-238).

Radionuclide monitoring results for the reporting period are presented in Figure 24 and Figure 25. The corresponding monitoring data for radionuclides in surface water is provided in Appendix A. Note that for concentrations reported as below the laboratory limit of reporting / limit of detection (as indicated by “<”) the numerical value is treated as a negative concentration to enable graphical representation in order to demonstrate that sampling for that analyte was undertaken in compliance with the EMP.



40

The monitoring results for radionuclides in surface water obtained during the reporting period confirm nil exceedances of any precautionary or upper trigger. Further, no off-site discharges from the confines of Pit 23 or immediate area occurred.

Note that long-term data for these surface water points is available and the data presented in Figure 24 and Figure 25 represents all current data for these points.

Table 8: Monitoring program – radionuclide concentrations in surface water

Surface water monitoring locations Frequency

DUSW14 – Costello’s Creek

DUSW5B – White Lake

DUSW24 – McGlashin Swamp

DUSW20 – North-west drainage line

DUSW22 – Southern Drainage Line

• Quarterly; or

• During or following an off-site discharge event (creek and drainage lines only)

Figure 24: Ra-226 and Ra-228 in surface water



41

Figure 25: Uranium and U-238 in surface water

4.2.2.3 Other analytes

In accordance with Section 8.7.2 of the EMP, quarterly samples (if available) obtained from the monitoring locations are subjected to in-field and laboratory analysis for a suite of target parameters.

As discussed in Sections 4.2.1 and 4.2.2.1 there have been no runoff or discharges from site throughout the reporting period and no instances where ionic balance ratios were triggered at surface water monitoring locations along the flow path of Pit 23 that may be influenced from groundwater discharge.

4.3 Noise

In accordance with Section 10.1.4 of the endorsed EMP, noise level measurements will be undertaken in the unlikely event that noise complaints are received.

No noise related complaints were received during the reporting period, and hence no noise levels measurements were undertaken.

4.4 PM10 concentrations in air

In accordance with Sections 9.6 and 10.1.4 of the endorsed EMP, the concentration of PM10 dust in air at the Lyon’s and Chadwick’s residences is measured using high volume (‘hi-vol’) air samplers on a one-in-six day monitoring cycle. The location of these hi-vol air samplers relative to Pit 23 are shown in Figure 27.

12-month rolling results for PM10 compared to daily rainfall are shown in Figure 26. Results adhere to the expected year-on-year pattern of lower airborne PM10 concentrations in winter months.



42

Figure 26: PM10 dust concentrations at neighbouring residences vs. daily rainfall

Two results above the PM10 concentration limit (0.06 mg/m3) were recorded at the Lyons residence in H2 2020, on the 12th and 30th December 2012.

Per Section 9.6 of the Pit 23 EMP, where an exceedance of a precautionary or upper concentration limit has occurred Iluka is to determine whether the elevated result is associated with Pit 23. This determination requires comparison between measured PM10 concentrations at the Chadwick’s and Lyon’s residences per the method outlined in Table 24 of the EMP, shown below:

Table 9: Elevated PM10 association with Pit 23 matrix

Location If measured concentration is Associated?

Chadwick’s > Trigger Level > Lyon’s Yes

Chadwick’s > Trigger Level < Lyon’s No

Lyon’s > Trigger Level > Chadwick’s No

Lyon’s > Trigger Level < Chadwick’s Yes

Assessment of the two H2 2020 concentration exceedances observed at the Lyon’s residence based on the above protocol is given in Table 10 below.

Based on this assessment, and with reference to field monitoring notes and weather data from the Kanagulk BOM station (Station # 079097) on these dates, neither exceedance was associated with Pit 23.

In both instances the measured PM10 concentrations at the Chadwick’s residence, which is sited upwind of the Lyon’s property and closer to the Pit 23 facility, were lower than those measured at Lyon’s residence and below the precautionary and upper concentration limits at the same point in time. This is supported by field monitoring records and wind data which indicate dust sources un-related to Pit 23 use and development.



43

Table 10: PM10 exceedance assessment, H2 2020

Date Measured Concentration (mg/m3)

Associated? Comment

Lyon’s Chadwick’s Rises

12/12/20 0.09 0.023 0.028 No BOM station indicates winds prevailing from the NE during the monitoring event (Pit 23 is sited to the W of Lyon’s residence).

30/12/20 0.22 0.01 0.015 No Sheep activity and third-party harvesting in vicinity of hi-volume air sampler unit during monitoring event. BOM station indicates winds prevailing from the S/SE during the monitoring event (Pit 23 is sited to W of Lyon’s residence).

!?

!?

!?

Lyons

The Rises

Chadwicks

Pit 19

Pit 22

Pit 5

Pit 10

Pit 9Pit 23

Pit 11

Pit 12

Pit 3

Pit 1

Pit 2

Pit 21

Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS,

AeroGRID, IGN, and the GIS User Community

27L:\Maps\2018\Unregistered\Douglas\mxd\Pit 23 Annual Report 2017 N. Travers 26/06/2018

N

0 1,000 2,000 3,000 4,000500MetersLegend

!? PM10 monitoring

Pit 23 crest

Pit Crests

FIGURE:DRAWN: DATE:

AIR QUALITY MONITORING LOCATIONS(PM10 - Hi Vols)



45

4.5 Radiation monitoring – other

It is a requirement of the Iluka Radiation Management Licence 300042022 that works relating to the minerals sands by-product disposal into Pit 23 are conducted in accordance with a Radiation Management Plan (RMP) and a Radioactive Waste Management Plan (RWMP), including the monitoring programs under those plans, to ensure that radiation doses are below the prescribed limit.

Radiation monitoring relevant to this performance report includes:

• Radon concentrations in air;

• Gross alpha activity concentration of airborne dust; and

• Radionuclide concentrations in groundwater and surface water.

Results for radon concentrations in air and gross alpha activity concentration of airborne dust are detailed below. Results for radionuclides in groundwater and surface water are detailed in Sections 4.1.3.2 and 4.2.2.2, respectively.

4.5.1 Radon concentrations in air

Monitoring of radon concentrations in air is undertaken at four locations within and immediately adjacent to Pit 23 and at two residences east of Pit 23 (Chadwick’s) and south of Pit 23 (Rises). Radon monitoring is undertaken using Landauer “Radtrak2” radon/thoron track etch detectors and the newer Rapidos High Sensitivity (“Rapidos HS”) radon detectors (Figure 28).

The Rapidos HS detectors were implemented in Q4 2018 for side-by-side comparison with the existing Radtrak2 detectors, with initial results from the Rapidos HS detectors indicating that airborne radon levels are significantly lower than those indicated by the less sensitive Radtrak2 detectors, and therefore provide a more accurate measure of actual airborne radon levels in the vicinity of Pit 23 and at local residences. This side-by-side comparison will continue through 2020 to allow for meaningful statistical comparison of radon data between units over time.

No high-sensitivity thoron detectors are available and thoron monitoring will continue using the Radtrack2 detectors.

Radon and Thoron monitoring results for the reporting period are presented in Table 11 and Table 12, and also in Figure 29 and Figure 30.

All measured radon and thoron levels in the H2 2020 reporting period were well below the reportable levels irrespective of the detectors used.

Figure 28: Radon and thoron detectors



46

Table 11: Radon concentrations within Pit 23 for H2 2020

Location

Radon concentration in air (Bq/m3) Rapidos High Sensitivity (Bq/m³)

Reportable level

Jan 20 - Mar 20

Apr 20 - Jun 20

Jul 20 - Sep 20

Oct 20 - Dec 20

Jan 20 - Mar 20

Apr 20 - Jun 20

Jul 20 - Sep 20

Oct 20 - Dec 20

Pit 23 East 100 16 ± 16 <15 <15 23 ± 16 <4 <3 <8 16 ± 8

Pit 23 North 100 <15 <15 <15 15 ± 16 4 ± 3 <3 <8 <10

Pit 23 West 100 <15 <15 31 ± 14 31 ± 16 <4 <3 13 ± 7 <10

Pit 23 South 100 <20 <15 34 ± 16 <15 <3 <3 14 ± 7 <10

Chadwick’s 100 <15 <15 29 ± 12 <15 6 ± 3 <3 <8 16 ± 9

Rises 100 <15 <15 <15 <15 <4 <3 15 ± 7 <10

Table 12: Thoron concentrations within Pit 23 for H2 2020

Location

Thoron concentration in air (Bq/m3) Radtrak2 Detectors

Reportable level

Jan19 To

Apr19

Apr19 To

Jul19

Jul19 To

Sep19

Oct19 To

Dec19

Jan20 To

Mar20

Apr20 To

Jun20

Jul20 To

Sep20

Oct20 To

Dec20

Pit 23 East 1000 67 ± 32 34 ± 20 58 ± 26 100 ± 36 <20 <20 <30 <40

Pit 23 North 1000 42 ± 28 <30 <30 <40 23 ± 12 <20 <30 <40

Pit 23 West 1000 119 ± 32 68 ± 22 66 ± 26 83 ± 40 58 ± 16 <20 <30 87 ± 36

Pit 23 South 1000 - 138 ± 30 115 ± 30 133 ± 38 81 ± 18 <20 <30 101 ± 36

Chadwick’s 1000 <30 <30 <30 <40 <20 <20 <30 <40

Rises 1000 36 ± 28 <30 <30 <40 <20 <20 <30 <40



47

Figure 29: Radon concentration in air, H2 2020

Figure 30: Thoron concentration in air, H2 2020



48

4.5.2 Gross alpha concentrations in airborne dust

As noted in Section 4.4, sampling for airborne particulates in PM10 dust is conducted using high volume (hi-vol) air samplers located at the Chadwick’s, Lyons and Rises residences (see Figure 27).

On a quarterly basis hi-vol units are run for a continuous 96 hour period for purposes of monitoring gross alpha concentration in air, which represents a total air sample volume of approximately 6,000 m3. The filters are weighed to determine the total dust loading in mg/m3 and then analysed for gross alpha activity expressed as millibequerels/m3 (mBq/m3).

The results for the monitoring period are in line with historical values and are shown in Table 13 and Figure 31.

Table 13: Gross Alpha radiation in PM10 dust

Location Run Date Sample / Filter No. Air Volume (m3) Activity Conc (mBq/m3)

Chadwick’s 07/09/2020 160420GF79 6046 0.228

Lyon’s 13/09/2020 160420GF82 6074 0.101

Rises 01/10/2020 160420GF90 5913 0.194

Chadwick’s 19/10/2020 310820GF2 5988 0.156

Lyon’s 19/10/2020 160420GF100 5961 0.131

Rises 19/10/2020 310820GF1 6044 0.136

Figure 31: Gross Alpha Radiation in PM10 Dust – H2 2020



49

5 Management Actions

5.1 Monitoring bore audits

In accordance with Section 7.6.2 of the EMP, audits of the monitoring bore network are undertaken on monthly or bi-annually and outcomes reported annually within this EMP and Rehabilitation Performance Report.

Bore integrity (e.g. physical condition, blocked/dry or poor yield) is assessed as part of the groundwater monitoring program.

As per Section 4.1.1 of this report, all bores are in serviceable condition with the exception of BW36 which is blocked and was replaced with BW36A in October 2019.

5.2 Groundwater flow paths from Pit 23

In accordance with Section 7.9.1 of the EMP, groundwater levels measured at bores WRK300 – WRK304 inclusive, GW1 to GW7 inclusive, GW9, BW36A and BW45B are used to construct groundwater contours in the area of Pit 23 and surrounds and infer groundwater flow paths from Pit 23, with these levels and flow paths compared with the groundwater levels and flow paths predicted by the hydrogeological model.

Groundwater level contours are provided in Figure 32 (EMM 2019; EMM 2020). This compares the 2019 modelled contours per EMM (2019), and interpreted groundwater contours as at June 2020 including standing water level data for new monitoring bores installed in 2018 and 2019. From these June 2020 contours it is confirmed that:

• groundwater contours and flow-paths are consistent with the 2019 modelled contours and prior year contours; and

• groundwater flow from Pit 23 is still to the north and north-west.



50

Figure 32: 2019 vs 2020 interpreted groundwater contours (EMM 2019; EMM 2020)



51

5.3 Groundwater model review and recalibration

Sections 7.10 and 8.7.2 of the endorsed EMP outlines the circumstances that will trigger a review

and recalibration of the hydrogeological model.

An update of the Douglas Mine (inclusive Pit 23) hydrogeological model was commissioned through

EMM Consulting in December 2018 in response to the potential groundwater seepage impacts

identified during surface water monitoring at McGlashin’s Swamp in the 2017 reporting period. This

also satisfied the commitment for a review of the model within two (2) years of the Planning Permit

being granted.

Whilst complimentary seepage impact investigation (EMM, 2018) determined that the observed

exceedances were associated with natural phenomena and un-related to Pit 23, a review and update

of the groundwater model was required in accordance with the Pit 23 EMP.

Preliminary findings of the 2019 groundwater model update were presented to the Responsible

Authority and Pit 23 Technical Reference Group (TRG) by Iluka and EMM Consulting personnel at

a meeting held at the HRCC Council Chambers on 23rd May 2019. The final modelling report was

completed and provided to the Responsible Authority in Q3 2019.

This modelling will be used to validate existing model predictions on the groundwater flow path and

groundwater flow rates from the Pit 23 facility, and to inform updates to groundwater-related content

with the next iteration of the Pit 23 Environmental Management Plan (EMP, Rev 5.1).

5.4 Maximum surface level of disposed materials in Pit 23

In accordance with Section 7.9.1 of the EMP, the maximum elevation of the upper surface of materials disposed of at the end of the reporting period must be reported.

The Pit 23 void consists of an upper and lower disposal area; no wastes were disposed into Pit 23 during the H2 2020 reporting period.

Accordingly, the survey undertaken on the 8th of December 2017 confirming the upper surface of materials deposited in Pit 23 (i.e. the elevation of capped material in the upper disposal area) remains unchanged at 193 mAHD.

5.5 Non-compliances

There were no non-compliances for the H2 2020 reporting period.

5.6 Comments and complaints received

No complaints or comments were received during the H2 2020 reporting period.

5.7 H2 2020 Completed Actions

The following actions were completed during H2 2020:

• submission of the updated Pit 23 Incoming Waste Monitoring Plan (IWMP) and Environmental Management Plan (EMP) as required by the default two-year review periods stipulated within these plans. The updated EMP (Revision 5.1) included outcomes of the updated groundwater modelling completed by EMM in 2019;

• annual review of the Pit 23 Risk Analysis and Response Plan (RARP) risk register as per Section 6 of the EMP; and



52

• Installation of groundwater monitoring bore GW04A located between GW04 and BW36A as previously agreed with Auditor.

5.8 H1 2021 Proposed Actions

The following actions are planned for H1 2021:

• implementation of the ongoing monitoring requirements as per the EMP.

5.9 Other matters

5.9.1 Annual geotechnical audit

In accordance with Section 10.5.2 and 10.5.3 of the EMP, geotechnical audits are completed on an annual basis with the last audit completed in December 2020 (AMC Consultants, 2020).

The next audit is scheduled for November 2021.

5.9.2 Pit 23 Risk Register annual review

Per Section 6 of the EMP, the Pit 23 Risk Analysis and Response Plan (RARP) was developed by AECOM Australia Pty Ltd who recommended that the Pit 23 Risk Register (contained as Appendix A of the RARP) be reviewed annually at the time when EMP and Rehabilitation Performance Reports are developed.

Reviews of the Pit 23 RARP risk register were conducted in December 2018 and presented in the prior 2018 EMP and Rehabilitation Performance Report submitted to the Responsible Authority on 3rd June 2019.

A review of the Pit 23 RARP risk register was undertaken in November 2020 as part of the review and update of the Environmental Management Plan (EMP) and is scheduled to be reviewed in H2 2021.



53

6 References

ANZECC/ARMCANZ (2000) National Water Quality Management Strategy: Australian and New Zealand Guidelines for Fresh and Marine Water Quality. Australian and New Zealand Environment and Conservation Council and Agricultural and Resource Management Council of Australia and New Zealand, Canberra, Australian Capital Territory, October 2000. CDM Smith (2014) Douglas Mine Site Hydrogeological Modelling. Completed on behalf of Iluka Resources, November 2014

CDM Smith (2015) Douglas Mine – Particle Tracking of Seepage Water. Completed on behalf of Iluka Resources, February 2015

EMM (2018) Pit 23 Groundwater – Assessment of Seepage Indicator Exceedances, November 2018 (Report S180265, Rev 2 Final), issued for Iluka Resources Ltd

EMM (2019) Groundwater Model Update and Predictive Scenario Modelling – Douglas Mine. Prepared by EMM Consulting for Iluka Resources Ltd, September 2019. EES (2016) Independent Desktop Review For The Continuation Of Mineral By-Products Disposal Into Pit 23 At Iluka’s Douglas Mine Site, Northwest Victoria No. 215071v2 dated April 2016. Prepared by Environmental Earth Sciences, Melbourne, Victoria. (TRIM T18729). AMC Consultants (2021) Douglas Mine Pit 23 Geotechnical Audit & Risk Assessment, 3rd December 2020.



54

7 Appendices

Appendix A: Monitoring Data (Lab) – Radiation – Surface Water

Surface water ID

Date Thorium Uranium U238 Ra226 Ra228

(mg/L) (mg/L) (Bq/L) (Bq/L) (Bq/L)

Precautionary trigger n/a 0.17 0.17 4.3 1.7

Upper trigger n/a 0.2 0.2 5 2

Q3 2020 DUSW05B 15/07/2020 DRY DRY DRY DRY DRY DUSW05B 17/09/2020 <0.002 <0.001 NR 0.02 0.13 DUSW14 15/07/2020 <0.002 <0.001 <0.025 <0.01 <0.08 DUSW20 15/07/2020 DRY DRY DRY DRY DRY DUSW20 14/09/2020 0.0038 <0.01 <0.025 <0.01 <0.08 DUSW22 15/07/2020 <0.002 <0.001 <0.025 <0.01 <0.08 DUSW24 15/07/2020 DRY DRY DRY DRY DRY DUSW24 17/09/2020 <0.002 0.007 0.049 0.01 <0.08

Q4 2020 DUSW05B 13/10/2020 <0.002 <0.001 <0.025 0.02 0.11 DUSW14 6/10/2020 <0.002 <0.001 <0.025 <0.01 <0.08 DUSW20 8/10/2020 <0.002 <0.001 <0.025 <0.01 <0.08 DUSW22 6/10/2020 <0.002 <0.001 <0.025 <0.01 <0.08 DUSW24 13/10/2020 <0.002 0.004 <0.025 0.01 <0.08 NR = No Result due to precipitation forming in sample



55

Appendix B: Monitoring Data (Lab) – Groundwater

Variable Unit Sample Point Date Result

Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_GW07 2/07/2020 76




Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_WRK302 6/07/2020 93


Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_BW36A 7/07/2020 260


Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_BW45B 7/07/2020 1 Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_IWB2 8/07/2020 32

Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_IWB6 8/07/2020 13

Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_BW05 8/07/2020 470


Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 95












Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 46



Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_BW45B 19/08/2020 7




Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/11/2020 51

Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/12/2020 51

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_GW07 2/07/2020 0




Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_WRK302 6/07/2020 0


Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_BW36A 7/07/2020 0




56


Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_BW45B 7/07/2020 0

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_IWB2 8/07/2020 0

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_IWB6 8/07/2020 0

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_BW05 8/07/2020 0


Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0












Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0



Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_BW45B 19/08/2020 0




Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/11/2020 0

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/12/2020 0

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_GW07 2/07/2020 0




Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_WRK302 6/07/2020 0


Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_BW36A 7/07/2020 0


Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_BW45B 7/07/2020 0

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_IWB2 8/07/2020 0

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_IWB6 8/07/2020 0

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_BW05 8/07/2020 0


Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0







57









Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0



Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_BW45B 19/08/2020 0




Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/11/2020 0

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/12/2020 0

Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_GW07 2/07/2020 76




Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_WRK302 6/07/2020 93


Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_BW36A 7/07/2020 260


Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_BW45B 7/07/2020 1 Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_IWB2 8/07/2020 32

Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_IWB6 8/07/2020 13

Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_BW05 8/07/2020 470


Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 95












Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 46





58


Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_BW45B 19/08/2020 7




Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/11/2020 51

Alkalinity (Total) as CaCO3 mg/L DG_A_I_PZ_GW04A 30/12/2020 51

Aluminium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.07



Aluminium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.01 Aluminium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.22


Aluminium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.02


Aluminium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 9.8

Aluminium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.11

Aluminium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.12

Aluminium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.1

Aluminium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.01 Aluminium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.17

Aluminium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.01 Aluminium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.02

Aluminium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.02





Aluminium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.01 Aluminium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.02


Aluminium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.02

Aluminium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 2.7

Aluminium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.01 Aluminium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.02

Aluminium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.43




Aluminium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.01 Aluminium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.01 Ammonia Nitrogen mg/L DG_A_I_PZ_GW07 2/07/2020 0.46

Ammonia Nitrogen mg/L DG_A_I_PZ_GW03 2/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_GW02 2/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_GW08 6/07/2020 0.02



59


Ammonia Nitrogen mg/L DG_A_I_PZ_WRK302 6/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_GW06 6/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_BW36A 7/07/2020 0.054

Ammonia Nitrogen mg/L DG_A_I_PZ_GW01 7/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_BW45B 7/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_IWB2 8/07/2020 0.004 Ammonia Nitrogen mg/L DG_A_I_PZ_IWB6 8/07/2020 0.013

Ammonia Nitrogen mg/L DG_A_I_PZ_BW05 8/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_BW28A 8/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 6.9

Ammonia Nitrogen mg/L DG_A_I_PZ_GW05 9/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_GW04 9/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_WRK300 13/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_WRK303 13/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_WRK301 13/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_WRK304 14/07/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_GW04 10/08/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_BW28A 10/08/2020 0.068

Ammonia Nitrogen mg/L DG_A_I_PZ_GW02 10/08/2020 0.045

Ammonia Nitrogen mg/L DG_A_I_PZ_GW01 10/08/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_BW36A 17/08/2020 1

Ammonia Nitrogen mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 1.2

Ammonia Nitrogen mg/L DG_A_I_PZ_GW05 17/08/2020 0.11

Ammonia Nitrogen mg/L DG_A_I_PZ_WRK303 19/08/2020 0.082

Ammonia Nitrogen mg/L DG_A_I_PZ_BW45B 19/08/2020 0.041

Ammonia Nitrogen mg/L DG_A_I_PZ_WRK304 19/08/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_WRK302 3/09/2020 0.02 Ammonia Nitrogen mg/L DG_A_I_PZ_GW04 15/10/2020 0.022

Ammonia Nitrogen mg/L DG_A_I_PZ_GW04A 30/11/2020 0.004 Ammonia Nitrogen mg/L DG_A_I_PZ_GW04A 30/12/2020 0.004 Anions (Total) meq/L DG_A_I_PZ_GW07 2/07/2020 180

Anions (Total) meq/L DG_A_I_PZ_GW03 2/07/2020 110



Anions (Total) meq/L DG_A_I_PZ_WRK302 6/07/2020 210


Anions (Total) meq/L DG_A_I_PZ_BW36A 7/07/2020 65


Anions (Total) meq/L DG_A_I_PZ_BW45B 7/07/2020 170

Anions (Total) meq/L DG_A_I_PZ_IWB2 8/07/2020 36

Anions (Total) meq/L DG_A_I_PZ_IWB6 8/07/2020 15

Anions (Total) meq/L DG_A_I_PZ_BW05 8/07/2020 250


Anions (Total) meq/L DG_A_I_PZ_BW53/Puls 9/07/2020 30



60













Anions (Total) meq/L DG_A_I_PZ_BW53/Puls 17/08/2020 25



Anions (Total) meq/L DG_A_I_PZ_BW45B 19/08/2020 160




Anions (Total) meq/L DG_A_I_PZ_GW04A 30/11/2020 74

Anions (Total) meq/L DG_A_I_PZ_GW04A 30/12/2020 74

Antimony (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001



61


Antimony (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.015

Antimony (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Antimony (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Arsenic (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.002

Arsenic (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.013



Arsenic (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.002


Arsenic (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.14


Arsenic (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.007

Arsenic (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.002

Arsenic (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.011

Arsenic (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.01


Arsenic (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.009












Arsenic (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.008



Arsenic (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.007




Arsenic (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001

Arsenic (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001



62


Barium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.025




Barium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.02


Barium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.43


Barium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.03

Barium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.003

Barium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.026

Barium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.029


Barium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.042












Barium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.035



Barium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.031




Barium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.072

Barium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.072

Beryllium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.002

Beryllium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001

Beryllium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.011

Beryllium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.009

Beryllium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001



63


Beryllium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.01

Beryllium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.007

Beryllium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001

Beryllium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Beryllium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Boron (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 1.6

Boron (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.26



Boron (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 1.8


Boron (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.07


Boron (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 1

Boron (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.06

Boron (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.03

Boron (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 1.4


Boron (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.21









64







Boron (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.18



Boron (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 1




Boron (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.35

Boron (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.35

Cadmium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.0002



65


Cadmium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.0002

Cadmium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.0002 Cadmium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.0002 Calcium mg/L DG_A_I_PZ_GW07 2/07/2020 390

Calcium mg/L DG_A_I_PZ_GW03 2/07/2020 170



Calcium mg/L DG_A_I_PZ_WRK302 6/07/2020 520


Calcium mg/L DG_A_I_PZ_BW36A 7/07/2020 120


Calcium mg/L DG_A_I_PZ_BW45B 7/07/2020 330

Calcium mg/L DG_A_I_PZ_IWB2 8/07/2020 9.5

Calcium mg/L DG_A_I_PZ_IWB6 8/07/2020 5.9

Calcium mg/L DG_A_I_PZ_BW05 8/07/2020 260


Calcium mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 25












Calcium mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 27



Calcium mg/L DG_A_I_PZ_BW45B 19/08/2020 310




Calcium mg/L DG_A_I_PZ_GW04A 30/11/2020 120

Calcium mg/L DG_A_I_PZ_GW04A 30/12/2020 120

Cations (Total) meq/L DG_A_I_PZ_GW07 2/07/2020 180




Cations (Total) meq/L DG_A_I_PZ_WRK302 6/07/2020 210




66


Cations (Total) meq/L DG_A_I_PZ_BW36A 7/07/2020 68


Cations (Total) meq/L DG_A_I_PZ_BW45B 7/07/2020 170

Cations (Total) meq/L DG_A_I_PZ_IWB2 8/07/2020 34

Cations (Total) meq/L DG_A_I_PZ_IWB6 8/07/2020 15

Cations (Total) meq/L DG_A_I_PZ_BW05 8/07/2020 260


Cations (Total) meq/L DG_A_I_PZ_BW53/Puls 9/07/2020 28












Cations (Total) meq/L DG_A_I_PZ_BW53/Puls 17/08/2020 26



Cations (Total) meq/L DG_A_I_PZ_BW45B 19/08/2020 150




Cations (Total) meq/L DG_A_I_PZ_GW04A 30/11/2020 74

Cations (Total) meq/L DG_A_I_PZ_GW04A 30/12/2020 74

Chloride mg/L DG_A_I_PZ_GW07 2/07/2020 5600




Chloride mg/L DG_A_I_PZ_WRK302 6/07/2020 6200


Chloride mg/L DG_A_I_PZ_BW36A 7/07/2020 1900


Chloride mg/L DG_A_I_PZ_BW45B 7/07/2020 5200

Chloride mg/L DG_A_I_PZ_IWB2 8/07/2020 1100

Chloride mg/L DG_A_I_PZ_IWB6 8/07/2020 350

Chloride mg/L DG_A_I_PZ_BW05 8/07/2020 7900


Chloride mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 720





67











Chloride mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 650



Chloride mg/L DG_A_I_PZ_BW45B 19/08/2020 5100




Chloride mg/L DG_A_I_PZ_GW04A 30/11/2020 2300

Chloride mg/L DG_A_I_PZ_GW04A 30/12/2020 2300

Chloride:Sulfate Ratio DG_A_I_PZ_GW07 2/07/2020 5.96


Chloride:Sulfate Ratio DG_A_I_PZ_GW02 2/07/2020 5


Chloride:Sulfate Ratio DG_A_I_PZ_WRK302 6/07/2020 4.43



Chloride:Sulfate Ratio DG_A_I_PZ_BW45B 7/07/2020 5.78

Chloride:Sulfate Ratio DG_A_I_PZ_IWB2 8/07/2020 7.33

Chloride:Sulfate Ratio DG_A_I_PZ_IWB6 8/07/2020 1.75

Chloride:Sulfate Ratio DG_A_I_PZ_BW05 8/07/2020 8.98

Chloride:Sulfate Ratio DG_A_I_PZ_BW28A 8/07/2020 7.72

Chloride:Sulfate Ratio DG_A_I_PZ_BW53/Puls 9/07/2020 2.12








Chloride:Sulfate Ratio DG_A_I_PZ_BW28A 10/08/2020 8.16



Chloride:Sulfate Ratio DG_A_I_PZ_BW53/Puls 17/08/2020 2.41





68


Chloride:Sulfate Ratio DG_A_I_PZ_BW45B 19/08/2020 6.3




Chromium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.009



Chromium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.005

Chromium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.002

Chromium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.003

Chromium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.026


Chromium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.006

Chromium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.003


Chromium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.004

Chromium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.026

Chromium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.003

Chromium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Chromium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.027

Cobalt (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.005


Cobalt (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.027




69


Cobalt (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.008


Cobalt (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.033

Cobalt (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.002

Cobalt (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.002

Cobalt (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.03

Cobalt (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.005


Cobalt (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.013





Cobalt (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.005

Cobalt (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.034

Cobalt (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Cobalt (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.027


Cobalt (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.004

Cobalt (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.004

Copper (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.003

Copper (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.005

Copper (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001

Copper (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.005


Copper (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.044

Copper (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001

Copper (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.004

Copper (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.002





70


Copper (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.012





Copper (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.002


Copper (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.006

Copper (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.003



Copper (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.029




Copper (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Copper (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Dissolved Oxygen mg/L DG_A_I_PZ_GW07 2/07/2020 9.3

Dissolved Oxygen mg/L DG_A_I_PZ_GW03 2/07/2020 0.1



Dissolved Oxygen mg/L DG_A_I_PZ_WRK302 6/07/2020 6.6


Dissolved Oxygen mg/L DG_A_I_PZ_BW36A 7/07/2020 0.1


Dissolved Oxygen mg/L DG_A_I_PZ_BW45B 7/07/2020 0.2

Dissolved Oxygen mg/L DG_A_I_PZ_IWB2 8/07/2020 0

Dissolved Oxygen mg/L DG_A_I_PZ_IWB6 8/07/2020 3.3

Dissolved Oxygen mg/L DG_A_I_PZ_BW05 8/07/2020 0

Dissolved Oxygen mg/L DG_A_I_PZ_BW28A 8/07/2020 0

Dissolved Oxygen mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.5



Dissolved Oxygen mg/L DG_A_I_PZ_WRK300 13/07/2020 1












71





Dissolved Oxygen mg/L DG_A_I_PZ_BW45B 19/08/2020 1

Dissolved Oxygen mg/L DG_A_I_PZ_GW07 20/08/2020 8










































72











Dissolved Oxygen mg/L DG_A_I_PZ_GW04A 30/11/2020 4.3












Dissolved Oxygen mg/L DG_A_I_PZ_GW04A 10/12/2020 3








Dissolved Oxygen Field % DG_A_I_PZ_GW07 2/07/2020 95




Dissolved Oxygen Field % DG_A_I_PZ_WRK302 6/07/2020 74


Dissolved Oxygen Field % DG_A_I_PZ_BW36A 7/07/2020 9


Dissolved Oxygen Field % DG_A_I_PZ_BW45B 7/07/2020 4

Dissolved Oxygen Field % DG_A_I_PZ_IWB2 8/07/2020 0


Dissolved Oxygen Field % DG_A_I_PZ_BW05 8/07/2020 0


Dissolved Oxygen Field % DG_A_I_PZ_BW53/Puls 9/07/2020 4




73






























Dissolved Oxygen Field % DG_A_I_PZ_BW36A 7/09/2020 0.1


Dissolved Oxygen Field % DG_A_I_PZ_BW45B 7/09/2020 0.3
















74






















Dissolved Oxygen Field % DG_A_I_PZ_GW04A 30/11/2020 39




















Electrical Conductivity µS/cm DG_A_I_PZ_GW07 2/07/2020 17000






75






Electrical Conductivity µS/cm DG_A_I_PZ_WRK302 6/07/2020 20000




Electrical Conductivity µS/cm DG_A_I_PZ_BW36A 7/07/2020 6900




Electrical Conductivity µS/cm DG_A_I_PZ_BW45B 7/07/2020 16000


Electrical Conductivity µS/cm DG_A_I_PZ_IWB2 8/07/2020 4000




Electrical Conductivity µS/cm DG_A_I_PZ_BW05 8/07/2020 23000




Electrical Conductivity µS/cm DG_A_I_PZ_BW53/Puls 9/07/2020 3000
























76
















































77





















Electrical Conductivity µS/cm DG_A_I_PZ_GW04A 30/11/2020 8100






















Fluoride mg/L DG_A_I_PZ_GW07 2/07/2020 0.36





78



Fluoride mg/L DG_A_I_PZ_WRK302 6/07/2020 0.57


Fluoride mg/L DG_A_I_PZ_BW36A 7/07/2020 0.6


Fluoride mg/L DG_A_I_PZ_BW45B 7/07/2020 1.2

Fluoride mg/L DG_A_I_PZ_IWB2 8/07/2020 0.18

Fluoride mg/L DG_A_I_PZ_IWB6 8/07/2020 0.1 Fluoride mg/L DG_A_I_PZ_BW05 8/07/2020 0.56


Fluoride mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.13









Fluoride mg/L DG_A_I_PZ_GW02 10/08/2020 0.1 Fluoride mg/L DG_A_I_PZ_GW01 10/08/2020 0.76


Fluoride mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.14



Fluoride mg/L DG_A_I_PZ_BW45B 19/08/2020 1.1




Fluoride mg/L DG_A_I_PZ_GW04A 30/11/2020 0.31

Fluoride mg/L DG_A_I_PZ_GW04A 30/12/2020 0.31

Iron (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 1.6

Iron (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.02


Iron (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.09

Iron (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 9.1


Iron (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.08

Iron (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.06

Iron (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.45

Iron (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.67

Iron (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 7.6



79


Iron (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.45

Iron (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.02

Iron (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.04


Iron (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 5.4



Iron (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 11

Iron (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.53


Iron (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.01 Iron (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.05




Iron (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.01

Iron (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.01

Lead (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.005

Lead (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001

Lead (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.002

Lead (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.025

Lead (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001



80


Lead (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.009

Lead (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.006

Lead (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Lead (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Magnesium mg/L DG_A_I_PZ_GW07 2/07/2020 310

Magnesium mg/L DG_A_I_PZ_GW03 2/07/2020 200



Magnesium mg/L DG_A_I_PZ_WRK302 6/07/2020 400


Magnesium mg/L DG_A_I_PZ_BW36A 7/07/2020 120


Magnesium mg/L DG_A_I_PZ_BW45B 7/07/2020 320

Magnesium mg/L DG_A_I_PZ_IWB2 8/07/2020 81

Magnesium mg/L DG_A_I_PZ_IWB6 8/07/2020 19

Magnesium mg/L DG_A_I_PZ_BW05 8/07/2020 460


Magnesium mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 56












Magnesium mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 52



Magnesium mg/L DG_A_I_PZ_BW45B 19/08/2020 320




Magnesium mg/L DG_A_I_PZ_GW04A 30/11/2020 140



81


Magnesium mg/L DG_A_I_PZ_GW04A 30/12/2020 140

Manganese (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.006




Manganese (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.015


Manganese (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 4


Manganese (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.052

Manganese (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.008

Manganese (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.011

Manganese (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.12

Manganese (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 1.5

Manganese (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.04












Manganese (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.03



Manganese (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.058




Manganese (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.056

Manganese (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.056

Mercury (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.0002

Mercury (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.0001

Mercury (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.0001



82


Mercury (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.0001

Mercury (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.0001 Mercury (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.0001 Molybdenum (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001

Molybdenum (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.002

Molybdenum (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.002

Molybdenum (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001



83


Molybdenum (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.002

Molybdenum (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Molybdenum (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Nickel (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.026

Nickel (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.005



Nickel (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.02


Nickel (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.012


Nickel (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.058

Nickel (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.003

Nickel (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.002

Nickel (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Nickel (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.013

Nickel (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Nickel (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.004











Nickel (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.003



Nickel (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.05



84





Nickel (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.005

Nickel (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.005

Nitrate-Nitrogen mg/L DG_A_I_PZ_GW07 2/07/2020 0.6

Nitrate-Nitrogen mg/L DG_A_I_PZ_GW03 2/07/2020 2



Nitrate-Nitrogen mg/L DG_A_I_PZ_WRK302 6/07/2020 0.34


Nitrate-Nitrogen mg/L DG_A_I_PZ_BW36A 7/07/2020 0.12


Nitrate-Nitrogen mg/L DG_A_I_PZ_BW45B 7/07/2020 0.15

Nitrate-Nitrogen mg/L DG_A_I_PZ_IWB2 8/07/2020 4

Nitrate-Nitrogen mg/L DG_A_I_PZ_IWB6 8/07/2020 8.2

Nitrate-Nitrogen mg/L DG_A_I_PZ_BW05 8/07/2020 1


Nitrate-Nitrogen mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 2.7

Nitrate-Nitrogen mg/L DG_A_I_PZ_GW05 9/07/2020 4











Nitrate-Nitrogen mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 3.8



Nitrate-Nitrogen mg/L DG_A_I_PZ_BW45B 19/08/2020 0.18




Nitrate-Nitrogen mg/L DG_A_I_PZ_GW04A 30/11/2020 4

Nitrate-Nitrogen mg/L DG_A_I_PZ_GW04A 30/12/2020 4

Nitrite (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.0033




Nitrite (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.0033



85




Nitrite (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.0263

Nitrite (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.0066

Nitrite (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.0132

Nitrite (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.0033

Nitrite (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.0428

Nitrite (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.0263








Nitrite (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.0197



Nitrite (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.1481



Nitrite (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.0559




Nitrite-Nitrogen mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_GW03 2/07/2020 0.012

Nitrite-Nitrogen mg/L DG_A_I_PZ_GW02 2/07/2020 0.025

Nitrite-Nitrogen mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_BW36A 7/07/2020 0.007

Nitrite-Nitrogen mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_BW45B 7/07/2020 0.008

Nitrite-Nitrogen mg/L DG_A_I_PZ_IWB2 8/07/2020 0.002

Nitrite-Nitrogen mg/L DG_A_I_PZ_IWB6 8/07/2020 0.004

Nitrite-Nitrogen mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_BW28A 8/07/2020 0.013

Nitrite-Nitrogen mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.008



Nitrite-Nitrogen mg/L DG_A_I_PZ_WRK300 13/07/2020 0.052





86


Nitrite-Nitrogen mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_GW04 10/08/2020 0.014

Nitrite-Nitrogen mg/L DG_A_I_PZ_BW28A 10/08/2020 0.006



Nitrite-Nitrogen mg/L DG_A_I_PZ_BW36A 17/08/2020 0.005

Nitrite-Nitrogen mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.045



Nitrite-Nitrogen mg/L DG_A_I_PZ_BW45B 19/08/2020 0.017


Nitrite-Nitrogen mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_PZ_GW04 15/10/2020 0.009

Nitrite-Nitrogen mg/L DG_A_I_PZ_GW04A 30/11/2020 0.12

Nitrite-Nitrogen mg/L DG_A_I_PZ_GW04A 30/12/2020 0.12

pH pH units DG_A_I_PZ_GW07 2/07/2020 6.4








pH pH units DG_A_I_PZ_WRK302 6/07/2020 6.1




pH pH units DG_A_I_PZ_BW36A 7/07/2020 6.8




pH pH units DG_A_I_PZ_BW45B 7/07/2020 4.4


pH pH units DG_A_I_PZ_IWB2 8/07/2020 5.6




pH pH units DG_A_I_PZ_BW05 8/07/2020 7.2

pH pH units DG_A_I_PZ_BW05 8/07/2020 7



pH pH units DG_A_I_PZ_BW53/Puls 9/07/2020 6.9


pH pH units DG_A_I_PZ_GW05 9/07/2020 6



87





pH pH units DG_A_I_PZ_WRK300 13/07/2020 7











































88








































pH pH units DG_A_I_PZ_GW04A 30/11/2020 6.6








89


















Phosphorus (Ortho) mg/L DG_A_I_PZ_GW07 2/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW03 2/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW02 2/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW08 6/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW06 6/07/2020 0.009

Phosphorus (Ortho) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.058

Phosphorus (Ortho) mg/L DG_A_I_PZ_GW01 7/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.077

Phosphorus (Ortho) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_BW05 8/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.063

Phosphorus (Ortho) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.96

Phosphorus (Ortho) mg/L DG_A_I_PZ_GW05 9/07/2020 0.006


Phosphorus (Ortho) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.004





Phosphorus (Ortho) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.047

Phosphorus (Ortho) mg/L DG_A_I_PZ_GW02 10/08/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW01 10/08/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.043

Phosphorus (Ortho) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.28





90


Phosphorus (Ortho) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.016

Phosphorus (Ortho) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW04 15/10/2020 0.011

Phosphorus (Ortho) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.004 Potassium mg/L DG_A_I_PZ_GW07 2/07/2020 16

Potassium mg/L DG_A_I_PZ_GW03 2/07/2020 29



Potassium mg/L DG_A_I_PZ_WRK302 6/07/2020 26


Potassium mg/L DG_A_I_PZ_BW36A 7/07/2020 15


Potassium mg/L DG_A_I_PZ_BW45B 7/07/2020 19

Potassium mg/L DG_A_I_PZ_IWB2 8/07/2020 5

Potassium mg/L DG_A_I_PZ_IWB6 8/07/2020 1.5

Potassium mg/L DG_A_I_PZ_BW05 8/07/2020 81


Potassium mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 9.8












Potassium mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 9.8



Potassium mg/L DG_A_I_PZ_BW45B 19/08/2020 18




Potassium mg/L DG_A_I_PZ_GW04A 30/11/2020 13

Potassium mg/L DG_A_I_PZ_GW04A 30/12/2020 13

Radium 226 Bq/L DG_A_I_PZ_GW07 2/07/2020 0.07






91


Radium 226 Bq/L DG_A_I_PZ_WRK302 6/07/2020 0.18


Radium 226 Bq/L DG_A_I_PZ_BW36A 7/07/2020 0.06


Radium 226 Bq/L DG_A_I_PZ_BW45B 7/07/2020 0.69

Radium 226 Bq/L DG_A_I_PZ_IWB2 8/07/2020 0.01

Radium 226 Bq/L DG_A_I_PZ_IWB6 8/07/2020 0.02

Radium 226 Bq/L DG_A_I_PZ_BW05 8/07/2020 0.03


Radium 226 Bq/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.04





Radium 226 Bq/L DG_A_I_PZ_WRK301 13/07/2020 0.01 Radium 226 Bq/L DG_A_I_PZ_WRK304 14/07/2020 0.02













Radium 226 Bq/L DG_A_I_PZ_GW04A 30/11/2020 0.04


Radium 228 Bq/L DG_A_I_PZ_GW03 2/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_GW02 2/07/2020 0.33

Radium 228 Bq/L DG_A_I_PZ_GW08 6/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_WRK302 6/07/2020 0.74





Radium 228 Bq/L DG_A_I_PZ_IWB2 8/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_IWB6 8/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_BW05 8/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_BW28A 8/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.1




92



Radium 228 Bq/L DG_A_I_PZ_WRK300 13/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_WRK303 13/07/2020 0.09

Radium 228 Bq/L DG_A_I_PZ_WRK301 13/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_WRK304 14/07/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_BW28A 10/08/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_GW02 10/08/2020 0.31






Radium 228 Bq/L DG_A_I_PZ_WRK303 19/08/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_WRK304 19/08/2020 0.08 Radium 228 Bq/L DG_A_I_PZ_BW45B 19/08/2020 2.36



Radium 228 Bq/L DG_A_I_PZ_GW04A 30/11/2020 0.2

Redox Potential (Eh) mV DG_A_I_PZ_GW07 2/07/2020 210




Redox Potential (Eh) mV DG_A_I_PZ_WRK302 6/07/2020 182


Redox Potential (Eh) mV DG_A_I_PZ_BW36A 7/07/2020 -41


Redox Potential (Eh) mV DG_A_I_PZ_BW45B 7/07/2020 283

Redox Potential (Eh) mV DG_A_I_PZ_IWB2 8/07/2020 315


Redox Potential (Eh) mV DG_A_I_PZ_BW05 8/07/2020 -10


Redox Potential (Eh) mV DG_A_I_PZ_BW53/Puls 9/07/2020 -130















93


Redox Potential (Eh) mV DG_A_I_PZ_BW36A 17/08/2020 9














































94











Redox Potential (Eh) mV DG_A_I_PZ_GW04A 30/11/2020 647




















Selenium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.008

Selenium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Selenium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.003


Selenium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.011


Selenium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.003


Selenium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.022

Selenium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Selenium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.002

Selenium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.015


Selenium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.003




95












Selenium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Selenium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.037


Selenium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.034




Selenium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.011

Selenium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.011

Silver (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001



96


Silver (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.003

Silver (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Silver (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Sodium mg/L DG_A_I_PZ_GW07 2/07/2020 3100

Sodium mg/L DG_A_I_PZ_GW03 2/07/2020 1900



Sodium mg/L DG_A_I_PZ_WRK302 6/07/2020 3400


Sodium mg/L DG_A_I_PZ_BW36A 7/07/2020 1200


Sodium mg/L DG_A_I_PZ_BW45B 7/07/2020 2900

Sodium mg/L DG_A_I_PZ_IWB2 8/07/2020 610

Sodium mg/L DG_A_I_PZ_IWB6 8/07/2020 310

Sodium mg/L DG_A_I_PZ_BW05 8/07/2020 4700


Sodium mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 490












Sodium mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 460



Sodium mg/L DG_A_I_PZ_BW45B 19/08/2020 2600




Sodium mg/L DG_A_I_PZ_GW04A 30/11/2020 1300

Sodium mg/L DG_A_I_PZ_GW04A 30/12/2020 1300

Standing Water Level mAHD DG_A_I_PZ_GW07 2/07/2020 172.536



97





Standing Water Level mAHD DG_A_I_PZ_WRK302 6/07/2020 176.77


Standing Water Level mAHD DG_A_I_PZ_BW36A 7/07/2020 174.475


Standing Water Level mAHD DG_A_I_PZ_BW45B 7/07/2020 177.37

Standing Water Level mAHD DG_A_I_PZ_IWB2 8/07/2020 179.656


Standing Water Level mAHD DG_A_I_PZ_BW05 8/07/2020 147.439


Standing Water Level mAHD DG_A_I_PZ_BW53/Puls 9/07/2020 175.81





















Standing Water Level mAHD DG_A_I_PZ_IWB6 20/08/2020 177













98









































Standing Water Level mAHD DG_A_I_PZ_GW05 25/11/2020 179







99














Standing Water Level mAHD DG_A_I_PZ_GW04A 10/12/2020 -24.48











Standing Water Level (mBTOC) m DG_A_I_PZ_GW07 2/07/2020 16.31




Standing Water Level (mBTOC) m DG_A_I_PZ_WRK302 6/07/2020 13.51


Standing Water Level (mBTOC) m DG_A_I_PZ_BW36A 7/07/2020 26.26


Standing Water Level (mBTOC) m DG_A_I_PZ_BW45B 7/07/2020 19.88

Standing Water Level (mBTOC) m DG_A_I_PZ_IWB2 8/07/2020 12.26


Standing Water Level (mBTOC) m DG_A_I_PZ_BW05 8/07/2020 5.33


Standing Water Level (mBTOC) m DG_A_I_PZ_BW53/Puls 9/07/2020 10.32










100



Standing Water Level (mBTOC) m DG_A_I_PZ_GW01 10/08/2020 19













































101



























Standing Water Level (mBTOC) m DG_A_I_PZ_GW04A 30/11/2020 24.42





















102






Strontium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 5.5

Strontium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 2



Strontium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 6.2


Strontium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 1.1


Strontium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 4

Strontium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.3

Strontium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.05

Strontium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 7.3


Strontium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.42










Strontium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 2


Strontium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.38



Strontium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 4.2




Strontium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 1.4

Strontium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 1.4

Sulfate mg/L DG_A_I_PZ_GW07 2/07/2020 940




Sulfate mg/L DG_A_I_PZ_WRK302 6/07/2020 1400




103


Sulfate mg/L DG_A_I_PZ_BW36A 7/07/2020 240


Sulfate mg/L DG_A_I_PZ_BW45B 7/07/2020 900

Sulfate mg/L DG_A_I_PZ_IWB2 8/07/2020 150

Sulfate mg/L DG_A_I_PZ_IWB6 8/07/2020 200

Sulfate mg/L DG_A_I_PZ_BW05 8/07/2020 880


Sulfate mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 340












Sulfate mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 270



Sulfate mg/L DG_A_I_PZ_BW45B 19/08/2020 810




Sulfate mg/L DG_A_I_PZ_GW04A 30/11/2020 360

Sulfate mg/L DG_A_I_PZ_GW04A 30/12/2020 360

Temperature °C DG_A_I_PZ_GW07 2/07/2020 17.9

Temperature °C DG_A_I_PZ_GW03 2/07/2020 18



Temperature °C DG_A_I_PZ_WRK302 6/07/2020 17.2


Temperature °C DG_A_I_PZ_BW36A 7/07/2020 14.9


Temperature °C DG_A_I_PZ_BW45B 7/07/2020 14.9

Temperature °C DG_A_I_PZ_IWB2 8/07/2020 17.7


Temperature °C DG_A_I_PZ_BW05 8/07/2020 17.2


Temperature °C DG_A_I_PZ_BW53/Puls 9/07/2020 15.1





104





Temperature °C DG_A_I_PZ_WRK304 14/07/2020 17
























Temperature °C DG_A_I_PZ_BW36A 7/09/2020 21



















105





















Temperature °C DG_A_I_PZ_GW04A 30/11/2020 18.4








Temperature °C DG_A_I_PZ_BW45B 9/12/2020 17












Thallium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001



106


Thallium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.004

Thallium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.005

Thallium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.004

Thallium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Thallium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Thorium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.002



107


Thorium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.006

Thorium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.006

Thorium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.006

Thorium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.002 Thorium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.002 Tin (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001



108


Tin (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001

Tin (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Tin (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001

Tin (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001

Titanium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.009

Titanium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001

Titanium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.002

Titanium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.004

Titanium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001

Titanium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.003



Titanium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.003

Titanium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.004

Titanium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.002

Titanium (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.002

Titanium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.074

Titanium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.002

Titanium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Titanium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Total Dissolved Solids mg/L DG_A_I_PZ_GW07 2/07/2020 11390



109


Total Dissolved Solids mg/L DG_A_I_PZ_GW07 2/07/2020 12000








Total Dissolved Solids mg/L DG_A_I_PZ_WRK302 6/07/2020 13400




Total Dissolved Solids mg/L DG_A_I_PZ_BW36A 7/07/2020 4000



Total Dissolved Solids mg/L DG_A_I_PZ_BW45B 7/07/2020 10720


Total Dissolved Solids mg/L DG_A_I_PZ_IWB2 8/07/2020 2680





Total Dissolved Solids mg/L DG_A_I_PZ_BW05 8/07/2020 15410

Total Dissolved Solids mg/L DG_A_I_PZ_BW05 8/07/2020 14000



Total Dissolved Solids mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 2010




















110




















Total Dissolved Solids mg/L DG_A_I_PZ_GW07 20/08/2020 12654.96


Total Dissolved Solids mg/L DG_A_I_PZ_WRK300 20/08/2020 4366.39













Total Dissolved Solids mg/L DG_A_I_PZ_BW45B 7/09/2020 11696.19













111
























Total Dissolved Solids mg/L DG_A_I_PZ_GW04A 30/11/2020 4600


















Total Dissolved Solids mg/L DG_A_I_PZ_GW04A 30/12/2020 4600

Uranium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW02 2/07/2020 0.001



112


Uranium (Total) mg/L DG_A_I_PZ_GW08 6/07/2020 0.001

Uranium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.003

Uranium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW01 7/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.017

Uranium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.004

Uranium (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.007

Uranium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW05 9/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW04 9/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_WRK303 13/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_WRK301 13/07/2020 0.006

Uranium (Total) mg/L DG_A_I_PZ_WRK304 14/07/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW04 10/08/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.007

Uranium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW01 10/08/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_BW36A 17/08/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW05 17/08/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.004

Uranium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.01

Uranium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.004

Uranium (Total) mg/L DG_A_I_PZ_WRK302 3/09/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW04 15/10/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.001 Uranium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.001 Uranium 238 Bq/L DG_A_I_PZ_GW07 2/07/2020 0.123

Uranium 238 Bq/L DG_A_I_PZ_GW03 2/07/2020 0.864

Uranium 238 Bq/L DG_A_I_PZ_GW02 2/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW08 6/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK302 6/07/2020 0.049

Uranium 238 Bq/L DG_A_I_PZ_GW06 6/07/2020 0.667

Uranium 238 Bq/L DG_A_I_PZ_BW36A 7/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW01 7/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW45B 7/07/2020 0.198

Uranium 238 Bq/L DG_A_I_PZ_IWB2 8/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_IWB6 8/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW05 8/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW28A 8/07/2020 0.025



113


Uranium 238 Bq/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW05 9/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW04 9/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK300 13/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK303 13/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK301 13/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK304 14/07/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW28A 10/08/2020 0.148

Uranium 238 Bq/L DG_A_I_PZ_GW02 10/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW01 10/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW04 10/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.037

Uranium 238 Bq/L DG_A_I_PZ_GW05 17/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW36A 17/08/2020 0.037

Uranium 238 Bq/L DG_A_I_PZ_WRK303 19/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK304 19/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_BW45B 19/08/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_WRK302 3/09/2020 0.16

Uranium 238 Bq/L DG_A_I_PZ_GW04 15/10/2020 0.025 Uranium 238 Bq/L DG_A_I_PZ_GW04A 30/11/2020 0.025 Vanadium (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.006

Vanadium (Total) mg/L DG_A_I_PZ_GW03 2/07/2020 0.009



Vanadium (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.001 Vanadium (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.007

Vanadium (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.003


Vanadium (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.004

Vanadium (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.002

Vanadium (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.006

Vanadium (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.005


Vanadium (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.012



Vanadium (Total) mg/L DG_A_I_PZ_WRK300 13/07/2020 0.003




Vanadium (Total) mg/L DG_A_I_PZ_BW28A 10/08/2020 0.001 Vanadium (Total) mg/L DG_A_I_PZ_GW02 10/08/2020 0.001




114



Vanadium (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.015


Vanadium (Total) mg/L DG_A_I_PZ_WRK303 19/08/2020 0.001 Vanadium (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.001 Vanadium (Total) mg/L DG_A_I_PZ_WRK304 19/08/2020 0.002


Vanadium (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.003

Vanadium (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.003

Zinc (Total) mg/L DG_A_I_PZ_GW07 2/07/2020 0.011




Zinc (Total) mg/L DG_A_I_PZ_WRK302 6/07/2020 0.003

Zinc (Total) mg/L DG_A_I_PZ_GW06 6/07/2020 0.001 Zinc (Total) mg/L DG_A_I_PZ_BW36A 7/07/2020 0.013


Zinc (Total) mg/L DG_A_I_PZ_BW45B 7/07/2020 0.047

Zinc (Total) mg/L DG_A_I_PZ_IWB2 8/07/2020 0.005

Zinc (Total) mg/L DG_A_I_PZ_IWB6 8/07/2020 0.004

Zinc (Total) mg/L DG_A_I_PZ_BW05 8/07/2020 0.009

Zinc (Total) mg/L DG_A_I_PZ_BW28A 8/07/2020 0.016

Zinc (Total) mg/L DG_A_I_PZ_BW53/Puls 9/07/2020 0.014












Zinc (Total) mg/L DG_A_I_PZ_BW53/Puls 17/08/2020 0.039



Zinc (Total) mg/L DG_A_I_PZ_BW45B 19/08/2020 0.037




Zinc (Total) mg/L DG_A_I_PZ_GW04A 30/11/2020 0.016

Zinc (Total) mg/L DG_A_I_PZ_GW04A 30/12/2020 0.016



115



116

Appendix C: Monitoring Data (Field) – Groundwater






Dissolved Oxygen mg/L DG_A_I_PZ_BW05 8/07/2020 0

Dissolved Oxygen mg/L DG_A_I_PZ_IWB2 8/07/2020 0

Dissolved Oxygen mg/L DG_A_I_PZ_IWB6 8/07/2020 3.3






































117
















































118







Dissolved Oxygen mg/L DG_A_I_PZ_BW36A 7/07/2020 0.1






Dissolved Oxygen mg/L DG_A_I_PZ_GW04A 30/11/2020 4.3

Dissolved Oxygen mg/L DG_A_I_PZ_GW04A 10/12/2020 3





Dissolved Oxygen Field % DG_A_I_PZ_BW05 8/07/2020 0





























119




























Dissolved Oxygen Field % DG_A_I_PZ_BW45B 7/09/2020 0.3




















120
















































121
















































122









































pH pH units DG_A_I_PZ_BW05 8/07/2020 7







123
















































124
















































125








Redox Potential (Eh) mV DG_A_I_PZ_BW05 8/07/2020 -10








































126
















































127








Redox Potential (Eh) mV DG_A_I_PZ_BW36A 17/08/2020 9















Standing Water Level mAHD DG_A_I_PZ_BW05 8/07/2020 147.439








Standing Water Level mAHD DG_A_I_PZ_IWB6 20/08/2020 177

















128
















































129
























Standing Water Level mAHD DG_A_I_PZ_GW05 25/11/2020 179














Standing Water Level mAHD DG_A_I_PZ_GW04A 10/12/2020 -24.48










130



Standing Water Level (mBTOC) m DG_A_I_PZ_BW05 8/07/2020 5.33













































131
















































132
























Temperature °C DG_A_I_PZ_BW05 8/07/2020 17.2
























133




































Temperature °C DG_A_I_PZ_BW45B 9/12/2020 17












134

































135

Appendix D: Monitoring Data (Lab) – Surface water


Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_SW_DUSW05B 17/09/2020 21.000

Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_SW_DUSW05B 13/10/2020 48.000

Alkalinity (Bicarbonate) as CaCO3 mg/L DG_A_I_SW_DUSW14 15/07/2020 160.000









Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_SW_DUSW05B 17/09/2020 52.000

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_SW_DUSW05B 13/10/2020 60.000

Alkalinity (Carbonate) as CaCO3 mg/L DG_A_I_SW_DUSW14 15/07/2020 0.000









Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.000

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_SW_DUSW19 26/11/2020 0.000

Alkalinity (Hydroxide) as CaCO3 mg/L DG_A_I_SW_DUSW24 13/10/2020 0.000

Alkalinity (Hydroxide) as OH mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.000

Alkalinity (Hydroxide) as OH mg/L DG_A_I_SW_DUSW14 15/07/2020 0.000







Alkalinity (Total) as CaCO3 mg/L DG_A_I_SW_DUSW05B 13/10/2020 110.000

Alkalinity (Total) as CaCO3 mg/L DG_A_I_SW_DUSW19 26/11/2020 64.000

Alkalinity (Total) as CaCO3 mg/L DG_A_I_SW_DUSW24 13/10/2020 150.000

Aluminium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Aluminium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 3.200

Aluminium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 7.800






136










Ammonia Nitrogen mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.030

Ammonia Nitrogen mg/L DG_A_I_SW_DUSW14 15/07/2020 0.024 Ammonia Nitrogen mg/L DG_A_I_SW_DUSW14 6/10/2020 0.020 Ammonia Nitrogen mg/L DG_A_I_SW_DUSW20 14/09/2020 0.056

Ammonia Nitrogen mg/L DG_A_I_SW_DUSW20 8/10/2020 0.330

Ammonia Nitrogen mg/L DG_A_I_SW_DUSW22 15/07/2020 0.020 Ammonia Nitrogen mg/L DG_A_I_SW_DUSW22 6/10/2020 0.020 Ammonia Nitrogen mg/L DG_A_I_SW_DUSW24 17/09/2020 0.210

Anions (Total) meq/L DG_A_I_SW_DUSW05B 17/09/2020 2600.000

Anions (Total) meq/L DG_A_I_SW_DUSW05B 13/10/2020 2800.000

Anions (Total) meq/L DG_A_I_SW_DUSW14 15/07/2020 66.000









Antimony (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Antimony (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Antimony (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.001 Antimony (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Arsenic (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010

Arsenic (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010

Arsenic (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.003



137













Barium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.080

Barium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.090

Barium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.031












Beryllium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Beryllium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Beryllium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Beryllium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.001

Beryllium (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Boron (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 2.900

Boron (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 3.200

Boron (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.100





138











Cadmium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.002 Cadmium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.002 Cadmium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.000 Cadmium (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.000 Calcium mg/L DG_A_I_SW_DUSW05B 17/09/2020 1700.000

Calcium mg/L DG_A_I_SW_DUSW05B 13/10/2020 1700.000

Calcium mg/L DG_A_I_SW_DUSW14 15/07/2020 74.000









Cations (Total) meq/L DG_A_I_SW_DUSW05B 17/09/2020 2800.000

Cations (Total) meq/L DG_A_I_SW_DUSW05B 13/10/2020 2700.000

Cations (Total) meq/L DG_A_I_SW_DUSW14 15/07/2020 73.000










139



Chloride mg/L DG_A_I_SW_DUSW05B 17/09/2020 86000.000

Chloride mg/L DG_A_I_SW_DUSW05B 13/10/2020 94000.000

Chloride mg/L DG_A_I_SW_DUSW14 15/07/2020 2100.000









Chromium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Chromium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Chromium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.007

Chromium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Chromium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.002

Chromium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001


Chromium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Chromium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Chromium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Chromium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Chromium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.002



Cobalt (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Cobalt (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Cobalt (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.002

Cobalt (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.003

Cobalt (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001

Cobalt (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Cobalt (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.006

Cobalt (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.002

Copper (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Copper (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Copper (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.010

Copper (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001



140



Copper (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Copper (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.005

Copper (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Copper (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.002






Electrical Conductivity µS/cm DG_A_I_SW_DUSW05B 17/09/2020 170000.000

Electrical Conductivity µS/cm DG_A_I_SW_DUSW05B 13/10/2020 180000.000

Electrical Conductivity µS/cm DG_A_I_SW_DUSW11 8/10/2020 78.000
















Fluoride mg/L DG_A_I_SW_DUSW05B 17/09/2020 1.000 Fluoride mg/L DG_A_I_SW_DUSW05B 13/10/2020 1.000 Fluoride mg/L DG_A_I_SW_DUSW14 15/07/2020 0.210

Fluoride mg/L DG_A_I_SW_DUSW14 6/10/2020 0.220


Fluoride mg/L DG_A_I_SW_DUSW20 14/09/2020 0.100 Fluoride mg/L DG_A_I_SW_DUSW20 8/10/2020 0.210





Iron (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Iron (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 2.200

Iron (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 5.600





141











Lead (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Lead (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Lead (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.003

Lead (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.008

Lead (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.004

Lead (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Lead (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.014

Lead (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.002

Magnesium mg/L DG_A_I_SW_DUSW05B 17/09/2020 3700.000

Magnesium mg/L DG_A_I_SW_DUSW05B 13/10/2020 4000.000

Magnesium mg/L DG_A_I_SW_DUSW14 15/07/2020 120.000









Manganese (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Manganese (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.130

Manganese (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.027










142






Mercury (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.001 Mercury (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.000 Mercury (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.000 Molybdenum (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Molybdenum (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Molybdenum (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.002

Molybdenum (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.004

Molybdenum (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.002

Molybdenum (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.001 Molybdenum (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001

Nickel (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Nickel (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Nickel (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.004

Nickel (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001




Nickel (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Nickel (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001






143




Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW11 8/10/2020 0.470

Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW14 15/07/2020 0.045

Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW14 6/10/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW17 7/10/2020 0.580



Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW20 14/09/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW20 8/10/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW22 15/07/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW22 6/10/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW24 17/09/2020 0.005 Nitrate-Nitrogen mg/L DG_A_I_SW_DUSW24 13/10/2020 0.082





Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.100 Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW11 8/10/2020 0.010

Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW14 15/07/2020 0.003

Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW17 7/10/2020 0.036





Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Nitrite-Nitrogen mg/L DG_A_I_SW_DUSW24 13/10/2020 0.004





Nitrogen (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 1.000

Nitrogen (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 1.400

Nitrogen (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 2.800






144















pH pH units DG_A_I_SW_DUSW05B 17/09/2020 8.400


pH pH units DG_A_I_SW_DUSW11 8/10/2020 7.300
















Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.015

Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.057

Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.004 Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.007

Phosphorus (Ortho) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.007





145



Phosphorus (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.340

Phosphorus (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.360

Phosphorus (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.190

















Potassium mg/L DG_A_I_SW_DUSW05B 17/09/2020 530.000

Potassium mg/L DG_A_I_SW_DUSW05B 13/10/2020 530.000

Potassium mg/L DG_A_I_SW_DUSW14 15/07/2020 6.700









Radium 226 Bq/L DG_A_I_SW_DUSW05B 17/09/2020 0.020


Radium 226 Bq/L DG_A_I_SW_DUSW14 15/07/2020 0.010

Radium 226 Bq/L DG_A_I_SW_DUSW14 6/10/2020 0.010 Radium 226 Bq/L DG_A_I_SW_DUSW19 26/11/2020 0.010 Radium 226 Bq/L DG_A_I_SW_DUSW20 14/09/2020 0.010 Radium 226 Bq/L DG_A_I_SW_DUSW20 8/10/2020 0.010 Radium 226 Bq/L DG_A_I_SW_DUSW22 15/07/2020 0.010

Radium 226 Bq/L DG_A_I_SW_DUSW22 6/10/2020 0.010 Radium 226 Bq/L DG_A_I_SW_DUSW24 17/09/2020 0.010

Radium 226 Bq/L DG_A_I_SW_DUSW24 13/10/2020 0.010





146


Radium 228 Bq/L DG_A_I_SW_DUSW14 15/07/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW14 6/10/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW19 26/11/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW20 14/09/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW20 8/10/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW22 15/07/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW22 6/10/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW24 17/09/2020 0.080 Radium 228 Bq/L DG_A_I_SW_DUSW24 13/10/2020 0.080 Selenium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Selenium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Selenium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.001 Selenium (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Silver (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Silver (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.001 Silver (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Sodium mg/L DG_A_I_SW_DUSW05B 17/09/2020 56000.000

Sodium mg/L DG_A_I_SW_DUSW05B 13/10/2020 52000.000

Sodium mg/L DG_A_I_SW_DUSW14 15/07/2020 1400.000







147






Strontium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 40.000

Strontium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 44.000

Strontium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.036












Sulfate mg/L DG_A_I_SW_DUSW05B 17/09/2020 6800.000

Sulfate mg/L DG_A_I_SW_DUSW05B 13/10/2020 7500.000

Sulfate mg/L DG_A_I_SW_DUSW14 15/07/2020 220.000



Sulfate mg/L DG_A_I_SW_DUSW20 14/09/2020 4.000 Sulfate mg/L DG_A_I_SW_DUSW20 8/10/2020 560.000





Thallium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Thallium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Thallium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.006

Thallium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.001 Thallium (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Thorium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.020



148


Thorium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.020 Thorium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.004

Thorium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.002 Thorium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.009

Thorium (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.002 Tin (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Tin (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Tin (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001

Tin (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Tin (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.002

Tin (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Titanium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Titanium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.020

Titanium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.340









Titanium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.001 Titanium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 1.900


Total Dissolved Solids mg/L DG_A_I_SW_DUSW05B 17/09/2020 170000.000

Total Dissolved Solids mg/L DG_A_I_SW_DUSW05B 13/10/2020 160000.000

Total Dissolved Solids mg/L DG_A_I_SW_DUSW11 8/10/2020 170.000



149

















Total Kjeldahl Nitrogen mg/L DG_A_I_SW_DUSW05B 17/09/2020 1.000

Total Kjeldahl Nitrogen mg/L DG_A_I_SW_DUSW05B 13/10/2020 1.400

Total Kjeldahl Nitrogen mg/L DG_A_I_SW_DUSW11 8/10/2020 2.300













Total Kjeldahl Nitrogen mg/L DG_A_I_SW_DUSW26 6/10/2020 0.020 Total Kjeldahl Nitrogen mg/L DG_A_I_SW_DUSW27 20/08/2020 3.900


Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.100 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.006 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW14 15/07/2020 0.048

Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW14 6/10/2020 0.006 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW19 26/11/2020 0.019

Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW20 14/09/2020 0.020 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW20 8/10/2020 0.006 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW22 15/07/2020 0.006 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW22 6/10/2020 0.006 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW24 17/09/2020 0.010 Total Oxidised Nitrogen as N mg/L DG_A_I_SW_DUSW24 13/10/2020 0.086



150


Total Suspended Solids mg/L DG_A_I_SW_DUSW05B 17/09/2020 280.000

Total Suspended Solids mg/L DG_A_I_SW_DUSW05B 13/10/2020 610.000

Total Suspended Solids mg/L DG_A_I_SW_DUSW11 8/10/2020 52.000









Total Suspended Solids mg/L DG_A_I_SW_DUSW22 6/10/2020 1.000 Total Suspended Solids mg/L DG_A_I_SW_DUSW23 15/07/2020 54.000







Turbidity NTU DG_A_I_SW_DUSW17 7/10/2020 2700.000




Uranium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Uranium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Uranium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW19 26/11/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW20 14/09/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW20 8/10/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Uranium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.004

Uranium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.007

Uranium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.002 Uranium (Total) mg/L DG_A_I_SW_DUSW24 13/10/2020 0.004



151


Uranium (Total) mg/L DG_A_I_SW_DUSW25 8/10/2020 0.002

Uranium (Total) mg/L DG_A_I_SW_DUSW27 8/10/2020 0.001 Uranium 238 Bq/L DG_A_I_SW_DUSW05B 13/10/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW14 15/07/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW14 6/10/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW19 26/11/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW20 14/09/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW20 8/10/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW22 15/07/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW22 6/10/2020 0.025 Uranium 238 Bq/L DG_A_I_SW_DUSW24 17/09/2020 0.049

Uranium 238 Bq/L DG_A_I_SW_DUSW24 13/10/2020 0.025 Vanadium (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Vanadium (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.020

Vanadium (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.013

Vanadium (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.001 Vanadium (Total) mg/L DG_A_I_SW_DUSW14 6/10/2020 0.003




Vanadium (Total) mg/L DG_A_I_SW_DUSW22 15/07/2020 0.001 Vanadium (Total) mg/L DG_A_I_SW_DUSW22 6/10/2020 0.001 Vanadium (Total) mg/L DG_A_I_SW_DUSW24 17/09/2020 0.007




Zinc (Total) mg/L DG_A_I_SW_DUSW05B 17/09/2020 0.010 Zinc (Total) mg/L DG_A_I_SW_DUSW05B 13/10/2020 0.010 Zinc (Total) mg/L DG_A_I_SW_DUSW11 8/10/2020 0.022

Zinc (Total) mg/L DG_A_I_SW_DUSW14 15/07/2020 0.004











Results that are italicised represent less than values i.e. 0.001 = <0.001



152

Appendix E: Monitoring Data (Field) – Surface water


Dissolved Oxygen mg/L DG_A_I_SW_DUSW05B 17/09/2020 7.3

Dissolved Oxygen % DG_A_I_SW_DUSW05B 17/09/2020 194

Dissolved Oxygen mg/L DG_A_I_SW_DUSW05B 13/10/2020 5.9

Dissolved Oxygen % DG_A_I_SW_DUSW05B 13/10/2020 157

Dissolved Oxygen mg/L DG_A_I_SW_DUSW11 8/10/2020 10.2

Dissolved Oxygen % DG_A_I_SW_DUSW11 8/10/2020 101

















Dissolved Oxygen mg/L DG_A_I_SW_DUSW22 15/07/2020 11






Dissolved Oxygen mg/L DG_A_I_SW_DUSW24 17/09/2020 11
















153


Electrical Conductivity µS/cm DG_A_I_SW_DUSW05B 17/09/2020 180514

Electrical Conductivity µS/cm DG_A_I_SW_DUSW05B 13/10/2020 170938

Electrical Conductivity µS/cm DG_A_I_SW_DUSW11 8/10/2020 75


































pH pH units DG_A_I_SW_DUSW23 15/07/2020 8

pH pH units DG_A_I_SW_DUSW24 17/09/2020 9









154


Redox Potential (Eh) mV DG_A_I_SW_DUSW05B 17/09/2020 210

Redox Potential (Eh) mV DG_A_I_SW_DUSW05B 13/10/2020 211

Redox Potential (Eh) mV DG_A_I_SW_DUSW11 8/10/2020 244




















Temperature (Water) °C DG_A_I_SW_DUSW05B 17/09/2020 17.5

Temperature (Water) °C DG_A_I_SW_DUSW05B 13/10/2020 21.4

Temperature (Water) °C DG_A_I_SW_DUSW11 8/10/2020 13.3

















Temperature (Water) °C DG_A_I_SW_DUSW26 6/10/2020 11





155


Turbidity NTU DG_A_I_SW_DUSW05B 17/09/2020 102

Turbidity NTU DG_A_I_SW_DUSW05B 13/10/2020 174

Turbidity NTU DG_A_I_SW_DUSW11 8/10/2020 136



















September 2021 19121052-011-R-Rev0

APPENDIX E

Important Information

GOLDER ASSOCIATES PTY LTD IMPORTANT INFORMATION RELATING TO THIS REPORT

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